Allylation of p-ketoaldehydes and functionalized imines by diallyltin dibromide: Formation of skipped and conjugated dienes
摘要:
Diallyltin dibromide reacts with beta-ketoaldehydes possessing no aromatic side groups and with (hydroxy) aryl imines to afford the expected homoallyl alcohols or amines respectively. With beta-ketoaldehydes having aromatic side groups, skipped or conjugated dienes are obtained depending on whether or not an aqueous work up procedure is used.