Category: 3400-55-3

Synthetic Route of C7H15BrO2. So far, in addition to halogen atoms, other non-metallic atoms can become part of the aromatic heterocycle, and the target ring system is still aromatic. Compound: 2-Bromopriopionaldehydediethylacetal, is researched, Molecular C7H15BrO2, CAS is 3400-55-3, about A modified Bischler synthesis of some tetracyclic indole derivatives.

Indoles I (RR1 = CH:CH, X = H2, CH2CH2, CH:CH, S) were obtained in 69-83% yield by cyclizing I (R = CH2CHO, R1 = H) on a mol. sieve. I (R = CH2CHO, R1 = H) were obtained by treating I (R = R1 = H) with BrCH2CH(OEt)2 and hydrolyzing I [R = CH2CH(OEt)2, R1 = H] with 4-MeC6H4SO3H. I (R = CH2CHO, R1 = H, X = bond) did not cyclize but dimerized.

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Most of the compounds have physiologically active properties, and their biological properties are often attributed to the heteroatoms contained in their molecules, and most of these heteroatoms also appear in cyclic structures. A Journal, Journal of Organic Chemistry called Reaction of 3-substituted imidazo[1,2-a]pyridines with bromine(1+) and the alleged 5-bromo-substituted product, Author is Hand, E. Smakula; Paudler, William W., which mentions a compound: 3400-55-3, SMILESS is CC(Br)C(OCC)OCC, Molecular C7H15BrO2, Reference of 2-Bromopriopionaldehydediethylacetal.

The reaction of 3-methylimidazo[1,2-a]pyridine with N-bromosuccinimide (I) gave products formed by apparent nucleophilic substitution at the 2-position. I in CHCl3 gave II and III, while I in CCl4 or Br2 in CHCl3 gave II exclusively. Mechanisms and differences in product formation are discussed; evidence is presented that the previously reported I product was in fact 3-bromo-5-methylimidazo[1,2-a]pyridine, rather than the alleged 5-bromo-3-Me derivative IV. IV was prepared by diazotization of 5-amino-3-methylimidazo[1,2-a]pyridine in the presence of HBr and by condensation of MeCHBrCHO (or its acetal) with 2-amino-6-bromopyridine.

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Karrer, Friedrich; Kayser, Hartmut; Buser, Hans Peter; Ramos Tombo, Gerardo M. published the article 《Insect juvenile hormone mimics: a chemical metamorphosis from terpenoid esters to aryloxy dioxolanes》. Keywords: insect juvenile hormone aryloxy dioxolane mimic.They researched the compound: 2-Bromopriopionaldehydediethylacetal( cas:3400-55-3 ).Name: 2-Bromopriopionaldehydediethylacetal. Aromatic heterocyclic compounds can be divided into two categories: single heterocyclic and fused heterocyclic. In addition, there is a lot of other information about this compound (cas:3400-55-3) here.

The 1,3-dioxolane derivative I is a potent juvenile hormone mimic. The stereoselective synthesis of its stereoisomers (2R,4S)-, (2S,4R)-, (2S,4S)-, and (2R,4R)-I was based on the chiral glycerol derivative II. Three different approaches to this central compound were investigated: using chiral building blocks, enantioselective catalytic hydrogenation, and stereoselective crystallization The latter is the most suitable for large scale synthesis. In vivo testing of the different stereoisomers on Nauphoeta cinerea showed that the juvenoid activity is mainly associated with the (2R,4S)-I isomer.

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Reference:
Piperazine – Wikipedia,
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The chemical properties of alicyclic heterocycles are similar to those of the corresponding chain compounds. Compound: 2-Bromopriopionaldehydediethylacetal, is researched, Molecular C7H15BrO2, CAS is 3400-55-3, about A Flexible Strategy for the Regiocontrolled Synthesis of Pyrazolo[1,5-a]pyrazines, the main research direction is pyrazolopyrazine preparation; pyrazole alkylation formylation cyclization reductive amination.Safety of 2-Bromopriopionaldehydediethylacetal.

A four-step protocol for the synthesis of pyrazolo[1,5-a]pyrazines was developed. Com. available pyrazoles were alkylated and formylated in a regiocontrolled manner to give pyrazole-5-aldehydes bearing 2,2-dialkoxyethyl substitution on N-1. Efficient conditions for the subsequent deprotection and cyclization of these intermediates allowed access to pyrazolo[1,5-a]pyrazines with multiple substitution patterns. The versatility of the pyrazole-5-aldehyde intermediates was further demonstrated through a deprotection and double-reductive amination sequence to give 4,5,6,7-tetrahydropyrazolo[1,5-a]pyrazines.

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Reference:
Piperazine – Wikipedia,
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In general, if the atoms that make up the ring contain heteroatoms, such rings become heterocycles, and organic compounds containing heterocycles are called heterocyclic compounds. An article called Switching with orthogonal stimuli: electrochemical ring-closure and photochemical ring-opening of bis(thiazolyl)maleimides, published in 2013, which mentions a compound: 3400-55-3, Name is 2-Bromopriopionaldehydediethylacetal, Molecular C7H15BrO2, Recommanded Product: 3400-55-3.

The photochem. as well as electrochem. of novel donor-acceptor bis(morpholinothiazolyl)-maleimides has been investigated. Proper substitution of these diarylethene-type mol. switches leads to the unique situation in which their ring-closure can only be accomplished electrochem., while ring-opening can only be achieved photochem. Hence, these switches operate with orthogonal stimuli, i.e. redox potential and light, resp. The switch system could be optimized by introducing trifluoromethyl groups at the reactive carbon atoms in order to avoid byproduct formation during oxidative ring closure. Both photochem. and electrochem. pathways were investigated for methylated, trifluoromethylated, and nonsym. bis(morpholinothiazolyl)maleimides as well as the bis(morpholinothiazolyl)cyclopentene reference compound With the aid of the nonsym. “”mixed”” derivative, the mechanism of electrochem. driven ring closure could be elucidated and seems to proceed via a dicationic intermediate generated by two-fold oxidation All exptl. work has been complemented by d. functional theory that provides detailed insights into the thermodn. of the ring-open and closed forms, the nature of their excited states, and the reactivity of their neutral as well as ionized species in different electronic configurations. The particular diarylethene systems described herein could serve in multifunctional (logic) devices operated by different stimuli (inputs) and may pave the way to converting light into elec. energy via photoinduced “”pumping”” of redox-active meta-stable states.

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Piperazine – Wikipedia,
Piperazines – an overview | ScienceDirect Topics

The three-dimensional configuration of the ester heterocycle is basically the same as that of the carbocycle. Compound: 2-Bromopriopionaldehydediethylacetal(SMILESS: CC(Br)C(OCC)OCC,cas:3400-55-3) is researched.Recommanded Product: (1S)-(-)-Camphanic acid. The article 《Enolate additions to a chiral 3-hydroxypropionate 2,3-dication equivalent. Enantioselective synthesis of β,δ-dihydroxy esters》 in relation to this compound, is published in Journal of Organic Chemistry. Let’s take a look at the latest research on this compound (cas:3400-55-3).

The use of optically active dicarbonyl cyclopentadienyliron(vinyl ether) BF4 salts, (e.g. (5R)-(dicarbonyl-η-cyclopentadienyliron)-5,6-dihydro-5-methyl-1,3-dioxin tetrafluoroborate), as enantioselective 3-hydroxypropionate 2,3-dication equivalent is outlined. They are readily available by exchange etherification of the dimethoxyethylene analog, and these were transformed to enantiomeric dicarbonyl (η-cyclopentadienyliron)(η2-1-methoxypropene) BF4 5 and ent-5. Complex 5 was converted to the corresponding p-methoxybenzyloxy vinyl ether complex by exchange etherification. Condensation of this salt with a number of terminal and nonterminal enolates yields adducts, which are then transformed by redox-promoted alkoxycarbonylation, followed by alc. deprotection, to optically active 2-methyl-3-hydroxy-5 keto esters. 1,3-Reduction of these ketols can be effected to give either syn- or anti-1,3-diols and thence their related pentanolides (e.g. (2R*,3S*,4R*,5S*)-5-ethyl-3-hydroxy-2,4-dimethyl-5-pentanolide).

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Piperazine – Wikipedia,
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Most of the compounds have physiologically active properties, and their biological properties are often attributed to the heteroatoms contained in their molecules, and most of these heteroatoms also appear in cyclic structures. A Journal, Article, Research Support, U.S. Gov’t, Non-P.H.S., Journal of Organic Chemistry called Synthesis of (±)-nonactic acid, Author is Arco, Manuel J.; Trammell, Marion H.; White, James D., which mentions a compound: 3400-55-3, SMILESS is CC(Br)C(OCC)OCC, Molecular C7H15BrO2, Recommanded Product: 2-Bromopriopionaldehydediethylacetal.

(±)-Nonactic acid (I) Me ester was prepared from furan by 2 methods. 2-Lithiofuran was alkylated with propylene oxide to give alc. II which was converted in 10 further steps via tetrahydrofuryl alc. III and epinonactate IV to I Me ester. The adduct V of furan and MeCHBrCOCHBrMe was converted to I Me ester in 10 steps via alc. VI, vinyltetrahydrofuran VII, and aldehyde VIII.

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Piperazine – Wikipedia,
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Epoxy compounds usually have stronger nucleophilic ability, because the alkyl group on the oxygen atom makes the bond angle smaller, which makes the lone pair of electrons react more dissimilarly with the electron-deficient system. Compound: 2-Bromopriopionaldehydediethylacetal, is researched, Molecular C7H15BrO2, CAS is 3400-55-3, about Reactions of α-bromopropionaldehyde and its diethyl acetal with triethyl phosphite and triphenylphosphine.Safety of 2-Bromopriopionaldehydediethylacetal.

Reactions of MeCHBrCH(OEt)2 (I) with (EtO)3P (II) gave, via MeCBr:CHOEt (III), (EtO)2P(O)CMe:CHOEt, which on hydrolysis yielded (EtO)2P(O)CHMeCHO. Reaction of MeCHBrCHO (IV) with II gave MeCH:CHOP(O)(OEt)2. Heating I with Ph3P in benzene gave Ph3PO and [Ph3P+Et]Br- with III and MeCH:CHCHMeCH(OEt)2 as by-products. III reacted with Ph3P to give [Ph3P+CMe:CHOEt]Br-, hydrolysis of which yielded [Ph3P+CHMeCHO]Br-. IV reacted with Ph3P to give [MeCH:CHOP+Ph3]Br-.

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Piperazine – Wikipedia,
Piperazines – an overview | ScienceDirect Topics

The three-dimensional configuration of the ester heterocycle is basically the same as that of the carbocycle. Compound: 2-Bromopriopionaldehydediethylacetal(SMILESS: CC(Br)C(OCC)OCC,cas:3400-55-3) is researched.Recommanded Product: (1S)-(-)-Camphanic acid. The article 《Enolate additions to a chiral 3-hydroxypropionate 2,3-dication equivalent. Enantioselective synthesis of β,δ-dihydroxy esters》 in relation to this compound, is published in Journal of Organic Chemistry. Let’s take a look at the latest research on this compound (cas:3400-55-3).

The use of optically active dicarbonyl cyclopentadienyliron(vinyl ether) BF4 salts, (e.g. (5R)-(dicarbonyl-η-cyclopentadienyliron)-5,6-dihydro-5-methyl-1,3-dioxin tetrafluoroborate), as enantioselective 3-hydroxypropionate 2,3-dication equivalent is outlined. They are readily available by exchange etherification of the dimethoxyethylene analog, and these were transformed to enantiomeric dicarbonyl (η-cyclopentadienyliron)(η2-1-methoxypropene) BF4 5 and ent-5. Complex 5 was converted to the corresponding p-methoxybenzyloxy vinyl ether complex by exchange etherification. Condensation of this salt with a number of terminal and nonterminal enolates yields adducts, which are then transformed by redox-promoted alkoxycarbonylation, followed by alc. deprotection, to optically active 2-methyl-3-hydroxy-5 keto esters. 1,3-Reduction of these ketols can be effected to give either syn- or anti-1,3-diols and thence their related pentanolides (e.g. (2R*,3S*,4R*,5S*)-5-ethyl-3-hydroxy-2,4-dimethyl-5-pentanolide).

Compound(3400-55-3)Synthetic Route of C7H15BrO2 received a lot of attention, and I have introduced some compounds in other articles, similar to this compound(2-Bromopriopionaldehydediethylacetal), if you are interested, you can check out my other related articles.

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

Most of the compounds have physiologically active properties, and their biological properties are often attributed to the heteroatoms contained in their molecules, and most of these heteroatoms also appear in cyclic structures. A Journal, Article, Research Support, U.S. Gov’t, Non-P.H.S., Journal of Organic Chemistry called Synthesis of (±)-nonactic acid, Author is Arco, Manuel J.; Trammell, Marion H.; White, James D., which mentions a compound: 3400-55-3, SMILESS is CC(Br)C(OCC)OCC, Molecular C7H15BrO2, Recommanded Product: 2-Bromopriopionaldehydediethylacetal.

(±)-Nonactic acid (I) Me ester was prepared from furan by 2 methods. 2-Lithiofuran was alkylated with propylene oxide to give alc. II which was converted in 10 further steps via tetrahydrofuryl alc. III and epinonactate IV to I Me ester. The adduct V of furan and MeCHBrCOCHBrMe was converted to I Me ester in 10 steps via alc. VI, vinyltetrahydrofuran VII, and aldehyde VIII.

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