1, 3-Dipolar Cycloaddition of the Simplest N-Acylazomethine Ylide Leading to 3- or 3, 4-Substituted N-Acylpyrrolidines

Abstract

The 1, 3-dipolar cycloaddition of intermediary N-acylazomethine ylides, formed from 1, 3, 5-tris (trimethylsilylmethyl) hexahydro-1, 3, 5-triazine and acyl halides, to conjugated olefinic dipolarophiles has been found to give 3- or 3, 4-substituted N-acylpyrrolidines in good yields.