Metaperiodic acid → 3-Chloro-thiophene-2,5-dicarboxylic acid 2-methyl ester

Participants

Reaction Steps

A mixture of 3-chloro-5-hydroxymethyl-thiophene-2-carboxylic acid methyl ester (1.3 g, 6.29 mmol) and Periodic Acid (3.15 g, 13.84 mmol) in MeCN (40 ml) was stirred for 30 min. A solution of PCC (0.027 g, 0.13 mmol) in MeCN (2 ml) was added. After 5 h, the reaction mixture was diluted with EtOAc (250 ml), washed with sodium sulfite, brine, dried over sodium sulfate, filtered and evaporated. Isolate 1.20 g (86%) of yellow solid product.

Provenance & Evidence