Microwave-and ultrasound-assisted semisynthesis of natural methoxylated propiophenones from isomeric mixture of phenylpropenes in minutes

BP Joshi, A Sharma, AK Sinha

文献索引：Joshi, Bhupendra P.; Sharma, Anuj; Sinha, Arun K. Canadian Journal of Chemistry, 2005 , vol. 83, # 10 p. 1826 - 1832

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被引用次数: 16

摘要

A rapid and practical semisynthesis of natural methoxylated propiophenones (3a 3f) is realized by reacting stereo-and regio-isomeric mixture of phenylpropenes (1a 1f) with a catalytic amount of palladium chloride sodium formate in formic acid, methanol, and water (2: 1: 2) into single product phenylpropanes (2a 2f) followed by its oxidation with 2, 3- dichloro-5, 6-dicyanobenzoquinone (DDQ) in wet dioxane, containing a few drops of ...