Xiang, Ming’s team published research in Journal of the American Chemical Society in 2021-06-16 | 374930-88-8

Journal of the American Chemical Society published new progress about Alkenyl alcohols Role: PRP (Properties), RCT (Reactant), SPN (Synthetic Preparation), RACT (Reactant or Reagent), PREP (Preparation). 374930-88-8 belongs to class piperazines, and the molecular formula is C13H19BrN4O2, Application In Synthesis of 374930-88-8.

Xiang, Ming; Pfaffinger, Dana E.; Ortiz, Eliezer; Brito, Gilmar A.; Krische, Michael J. published the artcile< Enantioselective Ruthenium-BINAP-Catalyzed Carbonyl Reductive Coupling of Alkoxyallenes: Convergent Construction of syn-sec,tert-Diols via (Z)-σ-Allylmetal Intermediates>, Application In Synthesis of 374930-88-8, the main research area is benzhydryloxyallene aldehyde ruthenium catalyst diastereoselective enantioselective reductive coupling reaction; aryl alc benzhydryloxyallene ruthenium catalyst diastereoselective enantioselective reductive coupling; benzhydryloxy alkenol preparation.

The first catalytic enantioselective ruthenium-catalyzed carbonyl reductive couplings of allene pronucleophiles was described. Using an iodide-modified ruthenium-BINAP-catalyst and O-benzhydryl alkoxyallene, carbonyl (α-alkoxy)allylation occurs from the alc. or aldehyde oxidation level to form enantiomerically enriched syn-sec,tert-diols. Internal chelation directs intervention of (Z)-σ-alkoxyallylruthenium isomers, which engage in stereospecific carbonyl addition

Journal of the American Chemical Society published new progress about Alkenyl alcohols Role: PRP (Properties), RCT (Reactant), SPN (Synthetic Preparation), RACT (Reactant or Reagent), PREP (Preparation). 374930-88-8 belongs to class piperazines, and the molecular formula is C13H19BrN4O2, Application In Synthesis of 374930-88-8.

Referemce:
Piperazine – Wikipedia,
Piperazines – an overview | ScienceDirect Topics

Wang, Xin’s team published research in Organic Letters in 2019-10-18 | 374930-88-8

Organic Letters published new progress about Arylation. 374930-88-8 belongs to class piperazines, and the molecular formula is C13H19BrN4O2, Safety of tert-Butyl 4-(5-bromopyrimidin-2-yl)piperazine-1-carboxylate.

Wang, Xin; Liu, Wei-Gang; Tung, Chen-Ho; Wu, Li-Zhu; Cong, Huan published the artcile< A Monophosphine Ligand Derived from Anthracene Photodimer: Synthetic Applications for Palladium-Catalyzed Coupling Reactions>, Safety of tert-Butyl 4-(5-bromopyrimidin-2-yl)piperazine-1-carboxylate, the main research area is monophosphine ligand anthracene photodimer preparation coupling catalyst; Miyaura borylation Suzuki couplings heterocyclic electrophile.

Herein, we present an air-stable dianthracenyl monophosphine ligand (diAnthPhos) which can be prepared in two steps from com. available anthracene derivatives The ligand exhibits excellent efficiency for palladium-catalyzed coupling reactions. In particular, Miyaura borylation of heterocycle-containing electrophiles can be facilitated employing the diAnthPhos ligand with a broad substrate scope and low catalyst loading. The valuable synthetic utility of the new ligand is further demonstrated by a one-pot Miyaura borylation/Suzuki coupling protocol for heteroaryl-containing substrates.

Organic Letters published new progress about Arylation. 374930-88-8 belongs to class piperazines, and the molecular formula is C13H19BrN4O2, Safety of tert-Butyl 4-(5-bromopyrimidin-2-yl)piperazine-1-carboxylate.

Referemce:
Piperazine – Wikipedia,
Piperazines – an overview | ScienceDirect Topics

Dong, Weizhe’s team published research in Organic Letters in 2021-06-04 | 374930-88-8

Organic Letters published new progress about Alkylation, chemoselective. 374930-88-8 belongs to class piperazines, and the molecular formula is C13H19BrN4O2, Product Details of C13H19BrN4O2.

Dong, Weizhe; Badir, Shorouk O.; Zhang, Xuange; Molander, Gary A. published the artcile< Accessing Aliphatic Amines in C-C Cross-Couplings by Visible Light/Nickel Dual Catalysis>, Product Details of C13H19BrN4O2, the main research area is trimethylsilylmethanamine aryl bromide nickel catalyst regioselective aminoalkylation; aryl methanamine preparation.

A general aminoalkylation of aryl halides were developed, overcoming intolerance of free amines in nickel-mediated C-C coupling. This transformation features broad functional group tolerance and high efficiency. Taking advantage of the fast desilylation of α-silylamines upon single-electron transfer (SET) facilitated by carbonate, α-amino radicals were generated regioselectively, which then engage in nickel-mediated C-C coupling. The reaction displays high chemoselectivity for C-C over C-N bond formation. Highly functionalized pharmacophores and peptides were also amenable.

Organic Letters published new progress about Alkylation, chemoselective. 374930-88-8 belongs to class piperazines, and the molecular formula is C13H19BrN4O2, Product Details of C13H19BrN4O2.

Referemce:
Piperazine – Wikipedia,
Piperazines – an overview | ScienceDirect Topics

Tryniszewski, Michal’s team published research in Organic Letters in 2022-06-17 | 197638-83-8

Organic Letters published new progress about Aryl aldehydes Role: RCT (Reactant), RACT (Reactant or Reagent). 197638-83-8 belongs to class piperazines, and the molecular formula is C16H22N2O3, Name: 1-Boc-4-(4-Formylphenyl)piperazine.

Tryniszewski, Michal; Basiak, Dariusz; Barbasiewicz, Michal published the artcile< Olefination with Sulfonyl Halides and Esters: Synthesis of Unsaturated Sulfonyl Fluorides>, Name: 1-Boc-4-(4-Formylphenyl)piperazine, the main research area is unsaturated sulfonyl fluoride preparation; sulfonyl halide ester arylaldehyde olefination.

Methanedisulfonyl fluoride, CH2(SO2F)2, transforms aromatic aldehydes into β-arylethenesulfonyl fluorides, useful substrates for the SuFEx “”click””-type transformations. The reaction mimics mechanism of the Horner-Wadsworth-Emmons olefination, which runs via addition of the carbanion, followed by cyclization-fragmentation of the four-membered ring intermediate. In the absence of base, electron-rich aldehydes follow an alternative pathway of the Knoevenagel condensation to provide unsaturated 1,1-disulfonyl fluorides. Authors demonstrate also trapping of elusive ethene-1,1-disulfonyl fluoride, CH2=C(SO2F)2, with 4-(dimethylamino)pyridine (DMAP) that forms zwitterionic adduct, characterized with X-ray studies.

Organic Letters published new progress about Aryl aldehydes Role: RCT (Reactant), RACT (Reactant or Reagent). 197638-83-8 belongs to class piperazines, and the molecular formula is C16H22N2O3, Name: 1-Boc-4-(4-Formylphenyl)piperazine.

Referemce:
Piperazine – Wikipedia,
Piperazines – an overview | ScienceDirect Topics

Chen, Xiaolan’s team published research in Phosphorus, Sulfur and Silicon and the Related Elements in 2012 | 76535-74-5

Phosphorus, Sulfur and Silicon and the Related Elements published new progress about Phosphorylation. 76535-74-5 belongs to class piperazines, and the molecular formula is C9H19ClN2O2, Recommanded Product: tert-Butyl piperazine-1-carboxylate hydrochloride.

Chen, Xiaolan; Yuan, Jinwei; Qu, Lingbo; Qu, Zhibo; Xu, Shaohua; Wang, Fujun; Zhao, Yufen published the artcile< Synthesis and Spectroscopic Characterization of Some New Piperazine Phosphoramide Derivatives of 4-Hydroxycoumarin>, Recommanded Product: tert-Butyl piperazine-1-carboxylate hydrochloride, the main research area is piperazine phosphoramide hydroxycoumarin preparation.

A series of new piperazine phosphoramide derivatives of 4-hydroxycoumarin were synthesized through a facile phosphorylating reaction starting from 4-hydroxycoumarin and various phosphorylating agents. The title compounds were characterized by IR, NMR, electrospray ionization-mass spectrometry, and high-resolution mass spectrometry, and their spectroscopic data were further analyzed to feature the related spectroscopic characteristics of the compounds of this class.

Phosphorus, Sulfur and Silicon and the Related Elements published new progress about Phosphorylation. 76535-74-5 belongs to class piperazines, and the molecular formula is C9H19ClN2O2, Recommanded Product: tert-Butyl piperazine-1-carboxylate hydrochloride.

Referemce:
Piperazine – Wikipedia,
Piperazines – an overview | ScienceDirect Topics

Yabuuchi, Takahiro’s team published research in Chemical & Pharmaceutical Bulletin in 1975 | CAS: 34352-59-5

1-Methylpiperazine dihydrochloride(cas: 34352-59-5) is used in the preparation of 2-(4-Methyl-1-piperazinylmethyl)acrylophenone(MPMAP), 1-methylpiperazine-1,4-diium tetrachloridozincate hemihydrate, 2-(4-Methyl-1-piperazinylmethyl)acrylophenone(MPMAP), an antimicrotubular drug..Formula: C5H14Cl2N2

《Synthesis of new antimicrobials. IV. Synthesis of alkylenebis(thiourea) derivatives and their related compounds》 was published in Chemical & Pharmaceutical Bulletin in 1975. These research results belong to Yabuuchi, Takahiro; Hisaki, Masakatu; Matuda, Masahiro; Kimura, Ryuichi. Formula: C5H14Cl2N2 The article mentions the following:

3,3′-Substituted 1,1′-alkylenebis(thiourea) derivatives, e.g. Et2NCH2CH2NHCSNHCH2CH2NHCSNHCH2CH2NEt2 were prepared from alkylenebis(isothiocyanates) and amines. Also, 3,3′-alkylenebis[2-thio-2,4(1H,3H)quinazolinediones] I (m = 3, 4, 6) were prepared by the reaction of alkylenebis(isothiocyanates) and anthranilic acid, or alkylene diamines and Et o-isothiocyanatobenzoate, resp. In the experiment, the researchers used 1-Methylpiperazine dihydrochloride(cas: 34352-59-5Formula: C5H14Cl2N2)

1-Methylpiperazine dihydrochloride(cas: 34352-59-5) is used in the preparation of 2-(4-Methyl-1-piperazinylmethyl)acrylophenone(MPMAP), 1-methylpiperazine-1,4-diium tetrachloridozincate hemihydrate, 2-(4-Methyl-1-piperazinylmethyl)acrylophenone(MPMAP), an antimicrotubular drug..Formula: C5H14Cl2N2

Referemce:
Piperazine – Wikipedia,
Piperazines – an overview | ScienceDirect Topics

Sudol, Sylwia’s team published research in European Journal of Medicinal Chemistry in 2020 | CAS: 34352-59-5

1-Methylpiperazine dihydrochloride(cas: 34352-59-5) is used in the preparation of 2-(4-Methyl-1-piperazinylmethyl)acrylophenone(MPMAP), 1-methylpiperazine-1,4-diium tetrachloridozincate hemihydrate, 2-(4-Methyl-1-piperazinylmethyl)acrylophenone(MPMAP), an antimicrotubular drug..Product Details of 34352-59-5

Product Details of 34352-59-5On October 1, 2020 ,《Chlorine substituents and linker topology as factors of 5-HT6R activity for novel highly active 1,3,5-triazine derivatives with procognitive properties in vivo》 was published in European Journal of Medicinal Chemistry. The article was written by Sudol, Sylwia; Kucwaj-Brysz, Katarzyna; Kurczab, Rafal; Wilczynska, Natalia; Jastrzebska-Wiesek, Magdalena; Satala, Grzegorz; Latacz, Gniewomir; Gluch-Lutwin, Monika; Mordyl, Barbara; Zeslawska, Ewa; Nitek, Wojciech; Partyka, Anna; Buzun, Kamila; Doroz-Plonka, Agata; Wesolowska, Anna; Bielawska, Anna; Handzlik, Jadwiga. The article contains the following contents:

This study had supplied highly potent 5-HT6R agents with procognitive effects, which represent an original chem. class of 1,3,5-triazines, different than widely studied sulfone and indole-like 5-HT6R ligands. The new compounds I (R1 = Ph, 2,3-Cl2C6H3, 2,5-Cl2C6H3, 3,4-Cl2C6H3, 3,5-Cl2C6H3, 2,4-Cl2C6H3; R2 = H, Me, Et, n-Pr, n-Bu, X = nothing; R2 = H, X = CH2CH2) were rationally designed as modifications of lead, 4-(1-(2-chlorophenoxy)ethyl)-6-(4-methylpiperazin-1-yl)-1,3,5-triazin-2-amine, involving an introduction of: (i) two chlorines at the benzene ring and (ii) varied linkers joining the triazine ring to aromatic ethers. Synthesis, in vitro and in vivo biol. tests and computer-aided SAR anal. for new compounds were carried out. Most of the new triazines displayed high affinity and selectivity toward 5-HT6R with respect to 5-HT2AR, 5-HT7R and D2R. The crystallog.-supported docking studies, including quantum-polarized ligand docking (QPLD), indicated that chlorine atoms might be involved in different type of halogen bonding, however, the linker properties seem to predominately affect the 5-HT6R affinity. Compound I (R1 = 2,5-Cl2C6H3; R2 = Et; X = nothing), which displayed: the highest affinity (Ki = 6 nM), very strong 5-HT6R antagonistic action (KB = 27 pM), procognitive effects in vivo in novel object recognition (NOR) test in rats, a very good permeability in PAMPA model and satisfying safety in vitro, was identified as the most potent 1,3,5-triazine agent so far, useful as a new lead for further research. In the experiment, the researchers used 1-Methylpiperazine dihydrochloride(cas: 34352-59-5Product Details of 34352-59-5)

1-Methylpiperazine dihydrochloride(cas: 34352-59-5) is used in the preparation of 2-(4-Methyl-1-piperazinylmethyl)acrylophenone(MPMAP), 1-methylpiperazine-1,4-diium tetrachloridozincate hemihydrate, 2-(4-Methyl-1-piperazinylmethyl)acrylophenone(MPMAP), an antimicrotubular drug..Product Details of 34352-59-5

Referemce:
Piperazine – Wikipedia,
Piperazines – an overview | ScienceDirect Topics

Miller-Moslin, Karen’s team published research in Journal of Medicinal Chemistry in 2009 | CAS: 1057682-05-9

(R)-6-(3-Methylpiperazin-1-yl)nicotinonitrile(cas: 1057682-05-9) belongs to piperazines. Piperazines are very broad chemical group, covering a wide range of drugs from antidepressants to antihistamines.COA of Formula: C11H14N4

Miller-Moslin, Karen; Peukert, Stefan; Jain, Rishi K.; McEwan, Michael A.; Karki, Rajesh; Llamas, Luis; Yusuff, Naeem; He, Feng; Li, Yanhong; Sun, Yingchuan; Dai, Miao; Perez, Lawrence; Michael, Walter; Sheng, Tao; Lei, Huangshu; Zhang, Rui; Williams, Juliet; Bourret, Aaron; Ramamurthy, Arun; Yuan, Jing; Guo, Ribo; Matsumoto, Melissa; Vattay, Anthony; Maniara, Wieslawa; Amaral, Adam; Dorsch, Marion; Kelleher, Joseph F. III published an article in Journal of Medicinal Chemistry. The title of the article was 《1-Amino-4-benzylphthalazines as Orally Bioavailable Smoothened Antagonists with Antitumor Activity》.COA of Formula: C11H14N4 The author mentioned the following in the article:

Abnormal activation of the Hedgehog (Hh) signaling pathway has been linked to several types of human cancers, and the development of small-mol. inhibitors of this pathway represents a promising route toward novel anticancer therapeutics. A cell-based screen performed in our laboratories identified a new class of Hh pathway inhibitors, 1-amino-4-benzylphthalazines, e.g. I, that act via antagonism of the Smoothened receptor. A variety of analogs were synthesized and their structure-activity relationships determined This optimization resulted in the discovery of high affinity Smoothened antagonists, one of which was further profiled in vivo. This compound displayed a good pharmacokinetic profile and also afforded tumor regression in a genetic mouse model of medulloblastoma. After reading the article, we found that the author used (R)-6-(3-Methylpiperazin-1-yl)nicotinonitrile(cas: 1057682-05-9COA of Formula: C11H14N4)

(R)-6-(3-Methylpiperazin-1-yl)nicotinonitrile(cas: 1057682-05-9) belongs to piperazines. Piperazines are very broad chemical group, covering a wide range of drugs from antidepressants to antihistamines.COA of Formula: C11H14N4

Referemce:
Piperazine – Wikipedia,
Piperazines – an overview | ScienceDirect Topics

Zajdel, Pawel’s team published research in European Journal of Medicinal Chemistry in 2018 | CAS: 84807-09-0

4-(Piperazin-1-yl)-1H-indole(cas: 84807-09-0) belongs to piperazines. Two common salts in the form of which piperazine is usually prepared for pharmaceutical or veterinary purposes are the citrate, 3C4H10N2.2C6H8O7 (i.e. containing 3 molecules of piperazine to 2 molecules of citric acid), and the adipate, C4H10N2.C6H10O4 (containing 1 molecule each of piperazine and adipic acid).Quality Control of 4-(Piperazin-1-yl)-1H-indole

Zajdel, Pawel; Kos, Tomasz; Marciniec, Krzysztof; Satala, Grzegorz; Canale, Vittorio; Kaminski, Krzysztof; Holuj, Malgorzata; Lenda, Tomasz; Koralewski, Robert; Bednarski, Marek; Nowinski, Leszek; Wojcikowski, Jacek; Daniel, Wladyslawa A.; Nikiforuk, Agnieszka; Nalepa, Irena; Chmielarz, Piotr; Kusmierczyk, Justyna; Bojarski, Andrzej J.; Popik, Piotr published an article on February 10 ,2018. The article was titled 《Novel multi-target azinesulfonamides of cyclic amine derivatives as potential antipsychotics with pro-social and pro-cognitive effects》, and you may find the article in European Journal of Medicinal Chemistry.Quality Control of 4-(Piperazin-1-yl)-1H-indole The information in the text is summarized as follows:

Currently used antipsychotics are characterized by multireceptor mode of action. While antagonism of dopamine D2 receptors is responsible for the alleviation of “”pos.”” symptoms of schizophrenia and the effects at other, particularly serotonergic receptors are necessary for their addnl. therapeutic effects, there is no consensus regarding an “”ideal”” target engagement. Here, a detailed SAR anal. in a series of 45 novel azinesulfonamides of cyclic amine derivatives, involving the aryl-piperazine/piperidine pharmacophore, central alicyclic amine and azinesulfonamide groups has led to the selection of (S)-4-((2-(2-(4-(benzo[b]thiophen-4-yl)piperazin-1-yl)ethyl)pyrrolidin-1-yl)sulfonyl)isoquinoline (62). The polypharmacol. profile of 62, characterized by partial 5-HT1AR agonism, 5-HT2A/5-HT7/D2/D3R antagonism, and blockade of SERT, reduced the “”pos.””-like, and “”neg.””-like symptoms of psychoses. Compound 62 produced no catalepsy, demonstrated a low hyperprolactinemia liability and displayed pro-cognitive effects in the novel object recognition task and attentional set-shifting test. While association of in vitro features with the promising in vivo profile of 62 is still not fully established, its clin. efficacy should be verified in further stages of development. The experimental part of the paper was very detailed, including the reaction process of 4-(Piperazin-1-yl)-1H-indole(cas: 84807-09-0Quality Control of 4-(Piperazin-1-yl)-1H-indole)

4-(Piperazin-1-yl)-1H-indole(cas: 84807-09-0) belongs to piperazines. Two common salts in the form of which piperazine is usually prepared for pharmaceutical or veterinary purposes are the citrate, 3C4H10N2.2C6H8O7 (i.e. containing 3 molecules of piperazine to 2 molecules of citric acid), and the adipate, C4H10N2.C6H10O4 (containing 1 molecule each of piperazine and adipic acid).Quality Control of 4-(Piperazin-1-yl)-1H-indole

Referemce:
Piperazine – Wikipedia,
Piperazines – an overview | ScienceDirect Topics

Bhardwaj, Harsh’s team published research in Indian Journal of Heterocyclic Chemistry in 2020 | CAS: 109-01-3

1-Methylpiperazine(cas: 109-01-3) can be used as mimic template in the preparation of molecularly imprinted microspheres (MIMs). It was also used to prepare the difunctional strong anion-exchange stationary phase from a 1,4-diazacyclohexane derivative..Related Products of 109-01-3

《Synthesis, biological evaluation and molecular docking studies of some new 2-(2-(substituted piperazin-1-yl)-phenyl)-1H-benzo[d]imidazoles as potential antibacterial, anticancer and antifungal agents》 was written by Bhardwaj, Harsh; Sharma, C. S.. Related Products of 109-01-3 And the article was included in Indian Journal of Heterocyclic Chemistry in 2020. The article conveys some information:

Some new 2-(2-(substituted piperazin-1-yl)-phenyl)-1H-benzo[d]imidazoles I [R = H, 2-Me, 4-Et, etc.] were designed, synthesized and evaluated by the docking studies using glide tool for their antimicrobial and anticancer activities. The structures of these compounds I were characterized by IR, proton NMR, mass spectral data, and elemental anal. Each analog was tested in-vitro for various types of pharmacol. activities, including antibacterial, antifungal and anticancer activity. The compound I [R = 3-Me] was found to be most active against Escherichia coli and Pseudomonas aeruginosa and compound I [R = 2-Et] against Bacillus subtilis and Staphylococcus aureus. The derivative I [R = 4-Et] showed good activity against Candida albicans and Aspergillus niger. Among all the tested compounds, I [R = H, 2-Me] were found with significant anticancer activity in comparison to Adriamycin standard drug. The obtained results revealed that most of the synthesized compounds I exhibited significant antifungal, antibacterial and anticancer activity. It was deduced that these synthesized compounds I can be regarded as a promising starting point for developing a single mol. with multiple targets.1-Methylpiperazine(cas: 109-01-3Related Products of 109-01-3) was used in this study.

1-Methylpiperazine(cas: 109-01-3) can be used as mimic template in the preparation of molecularly imprinted microspheres (MIMs). It was also used to prepare the difunctional strong anion-exchange stationary phase from a 1,4-diazacyclohexane derivative..Related Products of 109-01-3

Referemce:
Piperazine – Wikipedia,
Piperazines – an overview | ScienceDirect Topics