Novel Parham-type Cycloacylations of 1H-Pyrazole-1-alkanoic Acids
作者:Scott Larsen
DOI:10.1055/s-1997-955
日期:1997.8
Exposure of 1H-pyrazole-1-alkanoic acids to two equivalents of n-butyllithium affords the corresponding cyclic ketones via a Parham-type cyclization process. Although yields are modest, this procedure represents a simple and direct intramolecular acylation of a non-nucleophilic pyrazole carbon.