Trimethylamine N-oxide as a precursor of azomethine ylides
作者:R. Beugelmans、G. Negron、G. Roussi
DOI:10.1039/c39830000031
日期:——
The first azomethineylide devoid of a stabilizing group, generated by treating trimethylamineN-oxide with lithium di-isopropylamide, undergoes a ready [3 + 2] cycloaddition with various simple alkenes to give high yields of the corresponding pyrrolidines.
unstabilized azomethineylide generated from commercial trimethylamineN-oxide will undergo a remarkable 1,3-dipolar cycloaddition in good yield with electron-rich and unpolarized olefins. A broad range of substituents on the alkenes are tolerated provided they are compatible with excess LDA. This demonstration of novel reaction scope should encourage others to try trimethylamineN-oxide as an azomethine ylide