An h-1, c-13 and n-15 nmr study of the paal-knorr condensation of acetonylacetone with primary amines
作者:Alan R. Katritzky、Taher I. Yousaf、Ban Chi Chen、Zeng Guang-Zhi
DOI:10.1016/s0040-4020(01)87462-7
日期:1986.1
The reaction of primary amines with acetonylacetone is shown by H-1, C-13 and N-15NMR spectroscopy to proceed to the -substituted -2, 5-dimethylpyrroles the intermediacy of -substituted imines. Increased steric hindrance reduces rates of imine formation and decay.