Category: 208167-83-3piperazines

208167-83-3, tert-Butyl 4-(2-chloroethyl)piperazine-1-carboxylate is a piperazines compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

Intermediate 266 was prepared by the method indicated in the scheme belowusing well known synthetic procedures, 208167-83-3

As the paragraph descriping shows that 208167-83-3 is playing an increasingly important role.

Reference£º
Patent; JANSSEN PHARMACEUTICA NV; JOHNSON & JOHNSON (CHINA) INVESTMENT LTD.; DAI, Xuedong; QUEROLLE, Olivier Alexis Georges; KROSKY, Daniel Jason; CAI, Wei; FU, Liqiang; KONG, Linglong; LIU, Yingtao; WAN, Zhao-Kui; HERKERT, Barbara; PANDE, Vineet; EDWARDS, James Patrick; PATRICK, Aaron Nathaniel; ANGIBAUD, Patrick Rene; PONCELET, Virginie Sophie; (488 pag.)WO2019/120209; (2019); 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.208167-83-3,tert-Butyl 4-(2-chloroethyl)piperazine-1-carboxylate,as a common compound, the synthetic route is as follows.

Example 15.1.2: Preparation of 4-[2-(2-Amino-benzoimidazol-l-yl)-ethyl]- piperazine-1-carboxylic acid tert-butyl ester; 4-[2-(2-Amino-benzoimidazol-l-yl)-ethyl]-piperazine-l-carboxylic acid tert-butyl ester was prepared according to the procedure described in WO2005/058869. 1H NMR (300MHz, CDCl3): delta 7.43 (IH, d, J = 7.5 Hz, Ar-CH), 7.17-7.06 (3H, m, Ar- CH), 5.78 (2H, s, NH2), 3.64 (2H, t, J = 5.7 Hz, NCH2CH2N), 3.46 (4H, m, CH2NCH2), 2.56 (4H, m, CH2NCH2), 2.43 (2H, t, J = 5.7 Hz, NCH2CH2N), 1.46 (9H, s, C[CH3J3). MS (ESI+) m/z 346 (M+ 1)., 208167-83-3

208167-83-3 tert-Butyl 4-(2-chloroethyl)piperazine-1-carboxylate 22106269, apiperazines compound, is more and more widely used in various fields.

Reference£º
Patent; AVEXA LIMITED; WO2008/77188; (2008); 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.208167-83-3,tert-Butyl 4-(2-chloroethyl)piperazine-1-carboxylate,as a common compound, the synthetic route is as follows.,208167-83-3

Into a 50-mL sealed tube, was placed tert-butyl 4-(2-chloroethyl)piperazine-1-carboxylate (300 mg, 1.21 mmol, 1.00 equiv), methylamine (in ethanol) (10 mL), and NaI (100 mg). The resulting solution was stirred for 12 h at 70 C. in an oil bath. The resulting mixture was concentrated under vacuum. The resulting solution was diluted with 3 mL of water and adjusted to pH 7-8 with sodium bicarbonate (5%). The resulting solution was extracted with 2¡Á5 mL of dichloromethane and the organic layers combined. The resulting mixture was washed with 1¡Á3 mL of water and 1¡Á3 mL of brine. The resulting mixture was concentrated under vacuum. This resulted in 180 mg (crude) of tert-butyl 4-(2-(methylamino)ethyl)piperazine-1-carboxylate as brown oil.

The synthetic route of 208167-83-3 has been constantly updated, and we look forward to future research findings.

Reference£º
Patent; Ardelyx, Inc.; Lewis, Jason G.; Jacobs, Jeffrey W.; Reich, Nicholas; Leadbetter, Michael R.; Bell, Noah; Chang, Han-Ting; Chen, Tao; Navre, Marc; Charmot, Dominique; Carreras, Christopher; Labonte, Eric; (323 pag.)US9301951; (2016); B2;,
Piperazine – Wikipedia
Piperazines – an overview | ScienceDirect Topics

208167-83-3, tert-Butyl 4-(2-chloroethyl)piperazine-1-carboxylate is a piperazines compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

To a solution of 8-[cis-3-hydroxy-5-methylpiperidin-l- yl]quinoxaline-5-carbonitrile (300 mg, 1.01 mmol, 1.0 equiv) in DMF (20.0 mL) was added sodium hydride (804 mg, 33.50 mmol) at room temperature. The resulting mixture was stirred for 20 min at room temperature, and then was added tert-butyl 4-(2-chloroethyl)piperazine-l- carboxylate (788 mg, 3.17 mmol). The reaction mixture was stirred for 16 h at room temperature. When the reaction was done, it was quenched by the addition of water (10 mL). The resulting mixture was extracted with ethyl acetate (30 mL x 3). The organic phases were combined, washed with brine and dried over Na2S04. The solvent was removed under reduced pressure and the residue was purified by flash chromatography eluting with MeOH in DCM (0 % to 40 % gradient) to yield the title compound as a yellow solid (170 mg, 35 %). MS: 481 [M+H]+.

208167-83-3, 208167-83-3 tert-Butyl 4-(2-chloroethyl)piperazine-1-carboxylate 22106269, apiperazines compound, is more and more widely used in various fields.

Reference£º
Patent; MERCK PATENT GMBH; SHERER, Brian; LAN, Ruoxi; BRUGGER, Nadia; CHEN, Xiaoling; TOURE, Momar; CLEARY, Esther; DESELM, Lizbeth Celeste; WANG, Yanping; (397 pag.)WO2020/25517; (2020); A1;,
Piperazine – Wikipedia
Piperazines – an overview | ScienceDirect Topics

208167-83-3, tert-Butyl 4-(2-chloroethyl)piperazine-1-carboxylate is a piperazines compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

To a solution of 8-[cis-3-hydroxy-5-methylpiperidin-l- yl]quinoxaline-5-carbonitrile (300 mg, 1.01 mmol, 1.0 equiv) in DMF (20.0 mL) was added sodium hydride (804 mg, 33.50 mmol) at room temperature. The resulting mixture was stirred for 20 min at room temperature, and then was added tert-butyl 4-(2-chloroethyl)piperazine-l- carboxylate (788 mg, 3.17 mmol). The reaction mixture was stirred for 16 h at room temperature. When the reaction was done, it was quenched by the addition of water (10 mL). The resulting mixture was extracted with ethyl acetate (30 mL x 3). The organic phases were combined, washed with brine and dried over Na2S04. The solvent was removed under reduced pressure and the residue was purified by flash chromatography eluting with MeOH in DCM (0 % to 40 % gradient) to yield the title compound as a yellow solid (170 mg, 35 %). MS: 481 [M+H]+.

208167-83-3, 208167-83-3 tert-Butyl 4-(2-chloroethyl)piperazine-1-carboxylate 22106269, apiperazines compound, is more and more widely used in various fields.

Reference£º
Patent; MERCK PATENT GMBH; SHERER, Brian; LAN, Ruoxi; BRUGGER, Nadia; CHEN, Xiaoling; TOURE, Momar; CLEARY, Esther; DESELM, Lizbeth Celeste; WANG, Yanping; (397 pag.)WO2020/25517; (2020); A1;,
Piperazine – Wikipedia
Piperazines – an overview | ScienceDirect Topics