Synthesis of Soai Aldehydes for Asymmetric Autocatalysis by Desulfurative Cross-Coupling
作者:Oleg V. Maltsev、Alexander Pöthig、Lukas Hintermann
DOI:10.1021/ol500189s
日期:2014.3.7
Palladium-catalyzed dehydrosulfurative Liebeskind–Srogl coupling of terminal alkynes with 2-mercapto-1,3-pyrimidine-5-carbaldehyde under base-free conditions provides 2-(alkynyl)-1,3-pyrimidine-5-carbaldehydes, which are substrates for autocatalytic amplification of chirality according to Soai et al. The mercapto aldehyde acceptor is obtained by condensation of Arnold’s vinamidinium salt with thiourea