Direct and efficient electrocatalytic multicomponent assembling of arylaldehydes, malononitrile, and pyrazolin-5-ones into spirocyclopropyl pyrazolone scaffold
Direct and efficient electrocatalytic multicomponent assembling of arylaldehydes, malononitrile, and pyrazolin-5-ones into spirocyclopropyl pyrazolone scaffold
作者:Michail N. Elinson、Yuliya E. Ryzhkova、Anatoly N. Vereshchagin、Fedor V. Ryzhkov、Varvara M. Kalashnikova、Mikhail P. Egorov
DOI:10.1007/s00706-021-02784-w
日期:2021.6
“On water” palladium catalyzed diastereoselective boronic acid addition to structurally diverse cyclopropane nitriles
作者:Dwaipayan Das、Prasun Mukherjee、Asish R. Das
DOI:10.1039/d0ob00077a
日期:——
An efficient palladium catalyzeddiastereoselective addition of arylboronic acids to complex spirocyclopropyl dinitriles is developed in the presence of a catalytic amount of 4-dodecylbenzenesulphonic acid (DBSA) as a Brønstedacid surfactant in aqueousmedia. The protocol is also found to be highly effective when different types of nitrile compounds and organo-boron compounds are used. The overall