Abstract
Intramolecular amidocarbonylation of 3-butenamide catalyzed by a rhodium complex with excess PPh 3 gives 3,4-dihydro-2-pyridone selectively, whereas the same reaction using P(OPh) 3 affords a unique heterodimer in excellent yield. The reaction of 4-pentenamide gives 4-methyl-3,4-dihydro-2-pyridone exclusively regardless of the structure of rhodium catalysts.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have