199536-41-9Relevant articles and documents
Synthesis of Optically Active β-Lactams by the Reaction of 2-Acyl-3-phenyl-l-menthopyrazoles with C=N Compounds
Kashima, Choji,Fukusaka, Kiyoshi,Takahashi, Katsumi
, p. 1559 - 1565 (2007/10/03)
The reaction of 1-acyl-3,5-dimethyIpyrazoles 1 with C=N compounds was kinetically controlled with syn stereoselectivity through a lithium enolate intermediate using lithium diisopropylamide. In contrast, the anti stereoselective reaction of 1 was caused b