Acetic Anhydride → 5''-Acetylamino-2-benzyloxy-5-chloro[1,1';2',1'']terphenyl-3''-carboxylic acid ethyl ester

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Reaction Steps

Acetic anhydride (53 mg, 0.5 mmol) was added to a solution of 5″-amino-2-benzyloxy-5-chloro-[1,1′;2′,1″]terphenyl-3″-carboxylic acid ethyl ester (96 mg, 0.21 mmol) in pyridine (2 ml) and the mixture left at room temperature for 1 hour. The resulting solution was diluted with diethyl ether, washed with 1M hydrochloric acid and saturated sodium bicarbonate solution, dried (MgSO4) and evaporated to dryness to yield the title compound as a colourless gum. (102 mg, 97%).

Provenance & Evidence