Study of some thiophene analogs of glycolic acid

AT Jeffries, KC Moore, DM Ondeyka…

Index: Journal of Organic Chemistry, , vol. 46, # 14 p. 2885 - 2889

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Citation Number: 28

Abstract

... During a study of the chemistry of indenothiophenes, 4H-indeno[ 1,2-b]thiophene-4-carboxylic acid (2) was pre- pared in 39 ... 2888 J. Org. ... Hydrolysis followed by extraction of organic extra& with Na2C08 and acidification gave a brown solid precipitate (0.8 g) which was extracted ...