An alternative approach to synthesis of 2- n-butyl-5-nitrobenzofuran derivative: A key starting material for dronedarone hydrochloride.

Autor: RAJA GOPAL, P, CHANDRASHEKAR, E, SARAVANAN, M, VIJAYA BHASKAR, B, VEERA SOMAIAH, P
Předmět:
Zdroj: Journal of Chemical Sciences; Sep2012, Vol. 124 Issue 5, p1077-1085, 9p
Abstrakt: A practical synthesis of (2-butyl-5-nitrobenzofuran-3-yl)(4-hydroxyphenyl)methanone, a key intermediate in the preparation of anti arrhythmic drug, is described. The commercially available 4-nitrophenol ( 3) is converted in five steps to 2-butyl-5-nitrobenzofuran ( 9) which upon Friedel-Crafts acylation with 4-methoxybenzoyl chloride followed by deprotection of methyl group gives ( 2). [Figure not available: see fulltext.] [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index