Category: 475272-54-9

With the rapid development and complex challenges of chemical substances, new drug synthesis pathways are usually the most effective.475272-54-9,(S)-1-Boc-3-Isopropylpiperazine,as a common compound, the synthetic route is as follows.

2-Amino-4,6-dichloropyrimidine-5-carbaldehyde (2.4 g, 13 mmol) and tert-butyl (35)-3-isopropylpiperazine-l -carboxylate (2.9 g, 13 mmol) in 1,4-dioxane (50 mL) were treated with DIPEA (3.3 g, 5 mL, 25 mmol) and heated at 90C for 6 h. The reaction mixture was cooled and concentrated in vacuo, then partitioned between DCM and water. The organic layers were phase separated and concentrated. The resulting golden foam was taken up in THF (100 mL) with triethylamine (2.7 g, 4 mL, 27 mmol) and methylhydrazine (0.64 g, 0.73 mL, 14 mmol), then stirred for 72 h at room temperature. The reaction mixture was concentrated in vacuo and partitioned between DCM and water, then phase separated. The organic layers were further concentrated in vacuo. The residual foam was taken up in DCM (100 mL), then 4N HC1 in 1,4-dioxane (20 mL) was added and the mixture was stirred overnight. The resultant solution was concentrated in vacuo and triturated with diethyl ether to give the title compound (3.8 g, 95%) as a sticky foam that was >95% pure by LCMS. LCMS (ES+) [M+H]+ 276.2, RT 0.72 minutes (method 2).

475272-54-9, 475272-54-9 (S)-1-Boc-3-Isopropylpiperazine 24820348, apiperazines compound, is more and more widely used in various fields.

Reference：
Patent; UCB PHARMA S.A.; KATHOLIEKE UNIVERSITEIT LEUVEN, K.U.LEUVEN R&D; FORD, Daniel James; FRANKLIN, Richard Jeremy; GHAWALKAR, Anant Ramrao; HORSLEY, Helen Tracey; HUANG, Qiuya; REUBERSON, James Thomas; VANDERHOYDONCK, Bart; WO2014/96423; (2014); A1;,
Piperazine – Wikipedia
Piperazines – an overview | ScienceDirect Topics

With the rapid development and complex challenges of chemical substances, new drug synthesis pathways are usually the most effective.475272-54-9,(S)-1-Boc-3-Isopropylpiperazine,as a common compound, the synthetic route is as follows.

2-Amino-4,6-dichloropyrimidine-5-carbaldehyde (2.4 g, 13 mmol) and tert-butyl (35)-3-isopropylpiperazine-l -carboxylate (2.9 g, 13 mmol) in 1,4-dioxane (50 mL) were treated with DIPEA (3.3 g, 5 mL, 25 mmol) and heated at 90C for 6 h. The reaction mixture was cooled and concentrated in vacuo, then partitioned between DCM and water. The organic layers were phase separated and concentrated. The resulting golden foam was taken up in THF (100 mL) with triethylamine (2.7 g, 4 mL, 27 mmol) and methylhydrazine (0.64 g, 0.73 mL, 14 mmol), then stirred for 72 h at room temperature. The reaction mixture was concentrated in vacuo and partitioned between DCM and water, then phase separated. The organic layers were further concentrated in vacuo. The residual foam was taken up in DCM (100 mL), then 4N HC1 in 1,4-dioxane (20 mL) was added and the mixture was stirred overnight. The resultant solution was concentrated in vacuo and triturated with diethyl ether to give the title compound (3.8 g, 95%) as a sticky foam that was >95% pure by LCMS. LCMS (ES+) [M+H]+ 276.2, RT 0.72 minutes (method 2).

475272-54-9, 475272-54-9 (S)-1-Boc-3-Isopropylpiperazine 24820348, apiperazines compound, is more and more widely used in various fields.

Reference：
Patent; UCB PHARMA S.A.; KATHOLIEKE UNIVERSITEIT LEUVEN, K.U.LEUVEN R&D; FORD, Daniel James; FRANKLIN, Richard Jeremy; GHAWALKAR, Anant Ramrao; HORSLEY, Helen Tracey; HUANG, Qiuya; REUBERSON, James Thomas; VANDERHOYDONCK, Bart; WO2014/96423; (2014); A1;,
Piperazine – Wikipedia
Piperazines – an overview | ScienceDirect Topics

475272-54-9, (S)-1-Boc-3-Isopropylpiperazine is a piperazines compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

Intermediate 8 7-[(2S)-2-Isopropylpiperazin-1-yl]thiazolo[5,4-d]pyrimidin-5-amine hydrochloride [0228] Intermediate 4 (2.2 mmol) and tert-butyl (3S)-3-isopropylpiperazine-1-carboxylate (0.5 g, 2.2 mmol) in DMF (10 mL) and DIPEA (0.34 g, 2.63 mmol) were heated at 110 C. for 6 h. The reaction mixture was allowed to cool, then stirred overnight at room temperature. The reaction mixture was concentrated in vacuo, then partitioned between EtOAc and water. The organic layers were dried over sodium sulfate and concentrated in vacuo, then the crude material was purified by column chromatography (silica gel: 100-200 mesh, isohexanes:EtOAc, gradient 50% to 100% EtOAc) to give an off-white foam. This was taken up in 4N HCl in 1,4-dioxane (5 mL) and methanol (1 mL), and stirred for 1 h. The reaction mixture was concentrated in vacuo and triturated with diethyl ether to give the title compound (0.08 g, 12%). LCMS (ES+) 279 (M+H)+, RT 0.91 minutes (method 3)., 475272-54-9

As the paragraph descriping shows that 475272-54-9 is playing an increasingly important role.

Reference：
Patent; Brookings, Daniel Christopher; Ford, Daniel James; Franklin, Richard Jeremy; Ghawalkar, Anant Ramrao; Kulisa, Claire Louise; Neuss, Judi Charlotte; Reuberson, James Thomas; US2014/315885; (2014); A1;,
Piperazine – Wikipedia
Piperazines – an overview | ScienceDirect Topics

475272-54-9, (S)-1-Boc-3-Isopropylpiperazine is a piperazines compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

N’N- to carbonyl diimidazole (1.10g, 6.57mmol) in anhydrous DMF (2mL) was added dropwise a solution oftriethylamine (1.10mL, 7.88 mmol) and (S) -1-BOC-3- isopropyl-piperazine (1.00g, 4.38mmol) in anhydrousDMF (2mL) solution at room temperature in a sealed tube 50 min, adding anhydrous methanol (12mL), 80 Cthe reaction 48h, the solvent was removed, a saturated sodium chloride solution (10mL × 3), dried B Acetate(15mL × 2) and the combined organic phases, Na 2 SO 4 dried over anhydrous solvent removed concentratewas separated by column chromatography (leaching Lotion: Petroleumether / EtOAc (v / v) = 4/1), to give339mg of colorless liquid: 4-tert-butoxycarbonyl -2- (S) – isopropyl-piperazin-1-A Methyl, yield: 27%.

475272-54-9, 475272-54-9 (S)-1-Boc-3-Isopropylpiperazine 24820348, apiperazines compound, is more and more widely used in various fields.

Reference：
Patent; Guangdong East Sunshine Pharmaceutical Co., Ltd; Zhang, Ying jun; Liu, Bing; Yu, Tian Zhu; Zhang, Xiang Yu; (348 pag.)CN105399698; (2016); A;,
Piperazine – Wikipedia
Piperazines – an overview | ScienceDirect Topics

With the rapid development and complex challenges of chemical substances, new drug synthesis pathways are usually the most effective.475272-54-9,(S)-1-Boc-3-Isopropylpiperazine,as a common compound, the synthetic route is as follows.

2-Amino-4,6-dichloropyrimidine-5-carbaldehyde (2.4 g, 13 mmol) and tert-butyl (35)-3-isopropylpiperazine-l -carboxylate (2.9 g, 13 mmol) in 1,4-dioxane (50 mL) were treated with DIPEA (3.3 g, 5 mL, 25 mmol) and heated at 90C for 6 h. The reaction mixture was cooled and concentrated in vacuo, then partitioned between DCM and water. The organic layers were phase separated and concentrated. The resulting golden foam was taken up in THF (100 mL) with triethylamine (2.7 g, 4 mL, 27 mmol) and methylhydrazine (0.64 g, 0.73 mL, 14 mmol), then stirred for 72 h at room temperature. The reaction mixture was concentrated in vacuo and partitioned between DCM and water, then phase separated. The organic layers were further concentrated in vacuo. The residual foam was taken up in DCM (100 mL), then 4N HC1 in 1,4-dioxane (20 mL) was added and the mixture was stirred overnight. The resultant solution was concentrated in vacuo and triturated with diethyl ether to give the title compound (3.8 g, 95%) as a sticky foam that was >95% pure by LCMS. LCMS (ES+) [M+H]+ 276.2, RT 0.72 minutes (method 2).

475272-54-9, 475272-54-9 (S)-1-Boc-3-Isopropylpiperazine 24820348, apiperazines compound, is more and more widely used in various fields.

Reference£º
Patent; UCB PHARMA S.A.; KATHOLIEKE UNIVERSITEIT LEUVEN, K.U.LEUVEN R&D; FORD, Daniel James; FRANKLIN, Richard Jeremy; GHAWALKAR, Anant Ramrao; HORSLEY, Helen Tracey; HUANG, Qiuya; REUBERSON, James Thomas; VANDERHOYDONCK, Bart; WO2014/96423; (2014); A1;,
Piperazine – Wikipedia
Piperazines – an overview | ScienceDirect Topics

475272-54-9, (S)-1-Boc-3-Isopropylpiperazine is a piperazines compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

Intermediate 4 (2.2 mmol) and tert-butyl (35)-3-isopropylpiperazine-l-carboxylate (0.5 g, 2.2 mmol) in DMF (10 mL) and DIPEA (0.34 g, 2.63 mmol) were heated at 110C for 6 h. The reaction mixture was allowed to cool, then stirred overnight at room temperature. The reaction mixture was concentrated in vacuo, then partitioned between EtOAc and water. The organic layers were dried over sodium sulfate and concentrated in vacuo, then the crude material was purified by column chromatography (silica gel: 100- 200 mesh, isohexanes:EtOAc, gradient 50% to 100% EtOAc) to give an off- white foam. This was taken up in 4N HC1 in 1 ,4-dioxane (5 mL) and methanol (1 mL), and stirred for 1 h. The reaction mixture was concentrated in vacuo and triturated with diethyl ether to give the title compound (0.08 g, 12%).

475272-54-9, The synthetic route of 475272-54-9 has been constantly updated, and we look forward to future research findings.

Reference£º
Patent; UCB PHARMA S.A.; KATHOLIEKE UNIVERSITEIT LEUVEN, K.U.LEUVEN R&D; BROOKINGS, Daniel Christopher; FORD, Daniel James; FRANKLIN, Richard Jeremy; GHAWALKAR, Anant Ramrao; KULISA, Claire Louise; NEUSS, Judi Charlotte; REUBERSON, James Thomas; WO2013/68458; (2013); A1;,
Piperazine – Wikipedia
Piperazines – an overview | ScienceDirect Topics