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HRID2187265

反应详情

EQUATION

反应方程式

HRID 2187265 的结构方程式

REACTANTS

反应物

1
结构：CCOC(=O)CC[C@@H](C)[C@H]1CC=C2C3=C(CC[C@@]21C)[C@@]1(C)CC[C@H](O)C(C)(C)[C@@H]1CC3
HCID69411949

未命名化合物

PRODUCTS

生成物

1
结构：C[C@H](CCC(=O)O)[C@H]1CC=C2C3=C(CC[C@@]21C)[C@@]1(C)CC[C@H](O)C(C)(C)[C@@H]1CC3
HCID69410833

未命名化合物

收率 83.3%

AUXILIARIES

试剂、催化剂与溶剂

2
结构：CCO
溶剂HCID702

Ethanol

C2H6O

结构：[Na+].[OH-]
溶剂HCID14798

Sodium Hydroxide

HNaO

PROCEDURE

实验过程

3β-Hydroxy-4,4-dimethyl-5α-chola-8,14-dien-24-oic acid ethyl ester (1.9 g) is suspended in a mixture of 190 ml of 96% ethanol and 63 ml of 1M sodiumhydroxide. The mixture is stirred for 3.5 h at room temperature. After aqueous work-up and crystallization from ethanol/water, the title compound (1.48 g) is isolated. 1H-NMR (CDCl3, 400 MHz): δ=5.36 (1H, s); 3.22 (1H, m); 1.03 (3H, s). 1.01 (3H, s); 0.97 (3H, d); 0.83 (3H, s); 0.81 (3H, s). MS: Calculated: 400.6. Found 400.3.

WORKUP

后处理

  1. customAfter aqueous work-up and crystallization from ethanol/water