HRID1263226

反应详情

EQUATION

反应方程式

REACTANTS

反应物

HCID7918

Acetic anhydride

C4H6O3

结构：CCC[C@]1(O)CC[C@H]2[C@@H]3CC[C@H]4CC(=O)C[C@H](C)[C@]4(C)[C@H]3CC[C@@]21C

HCID71232

Propylmesterolone

C23H38O2

PRODUCTS

生成物

结构：CCC[C@]1(OC(C)=O)CC[C@H]2[C@@H]3CC[C@H]4CC(=O)C[C@H](C)[C@]4(C)[C@H]3CC[C@@]21C

HCID13020886

未命名化合物

AUXILIARIES

试剂、催化剂与溶剂

催化剂HCID14284

N,N-Dimethylpyridin-4-amine

C7H10N2

溶剂HCID1049

Pyridine

C5H5N

PROCEDURE

实验过程

1.5 g of 17β-hydroxy-1α-methyl-17α-n-propyl-5α-androstan-3-one is allowed to stand at room temperature in 6 ml of pyridine with 3 ml of acetic anhydride for 16 hours, after the addition of 75 mg of 4-dimethylaminopyridine. After the mixture has been precipitated into ice water and recrystallized from hexane, 1.3 g of 17β-acetoxy-1α-methyl-17α-n-propyl-5α-androstan-3-one is obtained, m.p. 128°-129° C.

WORKUP

后处理

customAfter the mixture has been precipitated into ice water
customrecrystallized from hexane