Water → HCID 22619805, compound

Participants

Reaction Steps

7-Phenoxysulfonyl-3,4-dihydroquinoxalin-2(1H)-one (1.52 g, 5.0 mmol) in 20 ml of N,N-dimethylacetamide was stirred for 8 hours at 100° C. with 2 ml of 3-methyl-2-buten-1-yl bromide. After cooling, the mixture was treated with water and extracted with ethyl acetate. The solution was dried using magnesium sulfate and then concentrated, and the residue was chromatographed over a silica gel column using ethyl acetate/heptane=1:1. The fractions which contained the substance were evaporated on a rotary evaporator, and the product was subsequently stirred with pentane and filtered off with suction, melting point 132° C.

Provenance & Evidence