Synthesis 2014; 46(17): 2371-2375
DOI: 10.1055/s-0033-1338643
paper
© Georg Thieme Verlag Stuttgart · New York

Two-Step Synthesis of 2-(9-Hydroxynonyl)-5,6-dimethoxy-3-methyl-1,4-benzoquinone

Jin Wang*
,
Xiao Hu
,
Jian Yang*
Further Information

Publication History

Received: 21 February 2014

Accepted after Revision: 23 April 2014

Publication Date:
28 May 2014 (online)


Abstract

2-(9-Hydroxynonyl)-5,6-dimethoxy-3-methyl-1,4-benzoquinone was readily synthesized from commercially available 3,4,5-trimethoxytoluene in two steps. First, 2,3-dimethoxy-5-methyl-1,4-benzoquinone (coenzyme Q0) was obtained in one step by treatment of 3,4,5-trimethoxytoluene with hydrogen peroxide under metal-free conditions, followed by free-radical alkylation with 10-hydroxydecanoic acid in the presence of potassium peroxodisulfate and silver nitrate in a mixed solvent (MeCN–H2O, 1:1) to afford the title compound in good yields (60%, based on coenzyme Q0).

Supporting Information