【结 构 式】 |
【分子编号】69260 【品名】1,4-butanediol monobutyrate;4-hydroxybutyl butyrate 【CA登记号】 |
【 分 子 式 】C8H16O3 【 分 子 量 】160.21324 【元素组成】C 59.98% H 10.07% O 29.96% |
与该中间体有关的原料药合成路线共 1 条
合成路线1
该中间体在本合成路线中的序号:(XI)Intermediates (III), (IVa) and (IVb) can be synthesized as follows. Esterification of butyric acid (X) with 1,4-butanediol (V) in the presence of TsOH·H2O in refluxing n-octane gives 1,4-butanediol monobutyrate (XI), which is then nitrated with HNO3/H2SO4 in CH2Cl2, yielding nitrate ester (XII). Selective saponification of the carboxylate of ester of (XII) with NaOH in MeOH/H2O, followed by acidification with H2SO4, furnishes 4-hydroxybutyl nitrate (III) .
【1】 Hack, A., Weingartner, G., Kramer, M. (NicOX SA). Process for preparing 1,4-butanediol mononitrate. WO 2009000723. |
中间体序号 | 中间体编号 | 品名 | CAS号 | 分子式 | 供应商 | 用于合成 |
---|---|---|---|---|---|---|
(III) | 69253 | 4-hydroxybutyl nitrate | C4H9NO4 | 详情 | 详情 | |
(V) | 43160 | 1,4-butanediol;1,4-Dihydroxybutane;1,4-Butylene glycol;Tetramethylene glycol | 110-63-4 | C4H10O2 | 详情 | 详情 |
(X) | 53267 | Butanoic acid; Butyric acid; N-Butanic acid; N-Butanoic acid; n-Butyric acid; N-Ethylacetic acid; N-Propanecarboxylic acid; N-Propylformic acid | 107-92-6 | C4H8O2 | 详情 | 详情 |
(XI) | 69260 | 1,4-butanediol monobutyrate;4-hydroxybutyl butyrate | C8H16O3 | 详情 | 详情 | |
(XII) | 69261 | 4-(nitrooxy)butyl butyrate | C8H15NO5 | 详情 | 详情 |
Extended Information