Water → 2-Chloro-1-(5-chloro-3-phenyl-2,3-dihydro-1H-indol-1-yl)ethan-1-one

Participants

Reaction Conditions

Reaction Steps

2.7 G of N-chloracetyl-3-phenylindoline was added with vigorous stirring to a solution of 0.77 g of chlorine in 10 ml of glacial acetic acid which had been cooled to 15° C. The temperature of the mixture which rose to 33° C was cooled down to room temperature and the mixture stirred for a further hour. The resulting solution was poured into 100 ml of cold water. The liquid was decanted from the gummy residue, which was subsequently crystallized from ethanol to give 1.9 g of crystalline N-chloracetyl-3-phenyl-5-chloroindoline having a melting point of 107°-9° C.

Provenance & Evidence