Diazomethane → HCID 22626256, compound

Participants

Reaction Steps

To a solution of 2′-benzyloxycarbonyl-4′-nitro-2-biphenylcarboxylic acid (2.8 g) which was prepared by the same procedure as a series of reaction of Reference Example 4→Reference Example 5, using Benzyl 2-trifluoromethylsulfonyloxy-5-nitrobenzoate, in ether-ethyl acetate (1:1, 40 ml), diazomethane (30 ml) was added. Acetic acid was added to the reaction mixture, and the solution was concentrated. The residue was purified by column chromatography on silica gel (hexane:ethyl acetate=5:2) to give the title compound (2.57 g) having the following physical data.

Provenance & Evidence