Asymmetric synthesis of both enantiomers of α-methyl-α-methoxyphenylacetic acid from l-(+)-tartaric acid: formal enantioselective synthesis of insect pheromone (−)-frontalin
作者:Kavirayani R. Prasad、Appayee Chandrakumar、Pazhamalai Anbarasan
DOI:10.1016/j.tetasy.2006.07.007
日期:2006.8
Both antipodes of α-methyl-α-methoxyarylacetic acid derivatives were prepared from a common chiralpool precursor l-(+)-tartaricacid. The key step involves the addition of Grignard reagents to 1,4-diketones derived from tartaric acid. The utility of this strategy was applied in the formal enantioselective synthesis of pine beetle pheromone (−)-frontalin.