반응 #63257

반응 방정식

water

ethyl 2-(8-chloro-2,3-dihydro-6-nitromethyl-5-oxopyrrolo[1,2,3-de]-1,4-benzoxazine-6-yl)-2-cyanoacetate

phosphorous trichloride

→

title compound

Ethyl 2-(8-chloro-6-cyano-2,3-dihydro-5-oxopyrrolo[1,2,3-de]-1,4-benzoxazine-6-yl)-2-cyanoacetate

용매

pyridine

반응 조건

후처리

1. 1
   추출extracted with ethyl acetate
2. 2
   기타After removal of solvent

실험 절차

To a solution of ethyl 2-(8-chloro-2,3-dihydro-6-nitromethyl-5-oxopyrrolo[1,2,3-de]-1,4-benzoxazine-6-yl)-2-cyanoacetate (3 g) in pyridine (30 ml) was added phosphorous trichloride (1.6 g) on an ice bath, and stirred at room temperature for 4.5 hours. The reaction mixture was poured into water and extracted with ethyl acetate. After removal of solvent, the title compound was obtained as dark reddish oil (0.9 g, 33%) by purification.

출처