Electrocatalytic multicomponent assembling of aldehydes, N-alkyl barbiturates and malononitrile: an efficient approach to pyrano[2,3-d]pyrimidines

Electrochemically induced multicomponent reaction of aldehydes, N-alkyl barbiturates and malononitrile in alcohols in an undivided cell leads to substituted pyrano[2,3-d]pyrimidines in 70-80% substance yields and 700-800% current yields.