反応 #2971

反応方程式

(±)-trans-2-ethyl-4a-(3-methoxyphenyl)-6-oxo-1,2,3,4,4a,5,6,7,8,8a-decahydroisoquinoline hydrochloride

N, N-dimethyl-2-phenylhydrazono-3-oxobutyramide

CH3COONa

→

product

収率 84.8%

3-methyl-4,4a,5,6,7,8,8a,9-octahydro-1H-pyrrolo[2,3-g]isoquinoline

収率 84.8%

溶媒

acetic acid

反応条件

後処理

1. 1
   その他The residue was purified by chromatography on silica gel (EtOAc/MeOH 0%→30%)

実験手順

1.0 g (3.1 mmol) of (±)-trans-2-ethyl-4a-(3-methoxyphenyl)-6-oxo-1,2,3,4,4a,5,6,7,8,8a-decahydroisoquinoline hydrochloride, 2.33 g (10 mmol) of N, N-dimethyl-2-phenylhydrazono-3-oxobutyramide, 0.82 g (1 0 mmol) of CH3COONa, 2.6 g (40 mmol) of zinc dust and 5 ml of glacial acetic acid were treated as described in example 1. The residue was purified by chromatography on silica gel (EtOAc/MeOH 0%→30%) yielding 0.5 g of product which was crystallized from Et2O yielding 0.5 g of the title compound. M.p.=151°-153° C.

出典