Preparation of 2, 3-dimethylene-2, 3-dihydrobenzofuran by the flash vacuum pyrolysis of (2-methyl-3-benzofuryl) methyl benzoate

CH Chou, WS Trahanovsky

Index: Chou, Chin-Hsing; Trahanovsky, Walter S. Journal of Organic Chemistry, 1986 , vol. 51, # 22 p. 4208 - 4212

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Citation Number: 27

Abstract

Results (2-Methyl-3-benzofury1) methyl benzoate (7) used in this work was prepared by the methylation of 3-benzofurancarboxylic acid (8), as indicated in Scheme I, to give 2-methyl-3- benzofurancarcarboxylic acid (9) followed by lithium aluminum hydride reduction to the corresponding alcohol (10) which was esterified with benzoyl chloride in the presence of triethylamine. Acid 8 was prepared by a known sequence of reactions which starts from ...