HRID2187282

反应详情

EQUATION

反应方程式

REACTANTS

反应物

HCID21226445

未命名化合物

结构：COC(=O)CC[C@@H](C)[C@H]1CC=C2C3=C(CC[C@@]21C)[C@@]1(C)CC[C@H](O[Si](C)(C)C(C)(C)C)C(C)(C)[C@@H]1CC3

HCID69410951

未命名化合物

PRODUCTS

生成物

结构：C[C@H](CCCO)[C@H]1CC=C2C3=C(CC[C@@]21C)[C@@]1(C)CC[C@H](O[Si](C)(C)C(C)(C)C)C(C)(C)[C@@H]1CC3

HCID69411676

未命名化合物

收率 91.4%

AUXILIARIES

试剂、催化剂与溶剂

溶剂HCID8028

Tetrahydrofuran

C4H8O

PROCEDURE

实验过程

3β-tert-Butyldimethylsilyloxy-4,4-dimethyl-5α-chola-8,14-dien-24-oic acid methyl ester (5.29 g) is reduced with lithium aluminium hydride (1.75 g) in 300 ml of THF at room temperature. After aqueous work-up and crystallisation from ethanol/water, 4.58 g of 3β-tert-butyldimethylsilyloxy-4,4-dimethyl-5α-chola-8,14-dien-24-ol is isolated.

WORKUP

后处理

customAfter aqueous work-up and crystallisation from ethanol/water

来源与证据

来源类型: Open Reaction Database
ORD 记录: ord-b12ac8a548224043a47322a08ebe7bfb
来源数据集: uspto-grants-2002_06
DOI: 10.6084/m9.figshare.5104873.v1
专利: US06407086B2
来源说明: uspto-grants-2002_06

反应 SMILES

C[O:2][C:3](=O)[CH2:4][CH2:5][C@H:6]([C@@H:8]1[C@:25]2([CH3:26])[C:11]([C:12]3[CH2:13][CH2:14][C@@H:15]4[C@:20]([C:22]=3[CH2:23][CH2:24]2)([CH3:21])[CH2:19][CH2:18][C@H:17]([O:27][Si:28]([C:31]([CH3:34])([CH3:33])[CH3:32])([CH3:30])[CH3:29])[C:16]4([CH3:36])[CH3:35])=[CH:10][CH2:9]1)[CH3:7].[H-].[Al+3].[Li+].[H-].[H-].[H-]>C1COCC1>[Si:28]([O:27][C@H:17]1[CH2:18][CH2:19][C@@:20]2([CH3:21])[C@@H:15]([CH2:14][CH2:13][C:12]3[C:11]4[C@:25]([CH3:26])([CH2:24][CH2:23][C:22]=32)[C@@H:8]([C@H:6]([CH3:7])[CH2:5][CH2:4][CH2:3][OH:2])[CH2:9][CH:10]=4)[C:16]1([CH3:35])[CH3:36])([C:31]([CH3:34])([CH3:32])[CH3:33])([CH3:30])[CH3:29]