Aliphatic linear and α-branched aldehydes efficiently undergo arylation at the α-position upon treatment with aryl bromides using an appropriate palladium catalyst system that is capable of overcoming aldol condensation of the substrates.
Carbonylative Transformation of Allylarenes with CO Surrogates: Tunable Synthesis of 4-Arylbutanoic Acids, 2-Arylbutanoic Acids, and 4-Arylbutanals
作者:Fu-Peng Wu、Da Li、Jin-Bao Peng、Xiao-Feng Wu
DOI:10.1021/acs.orglett.9b02047
日期:2019.7.19
In this Communication, procedures for the selective synthesis of 4-arylbutanoic acids, 2-arylbutanoic acids, and 4-arylbutanals from the same allylbenzenes have been developed. With formic acid or TFBen as the CO surrogate, reactions proceed selectively and effectively under carbon monoxide gas-free conditions.