Quantification of the Electrophilicities of Diazoalkanes: Kinetics and Mechanism of Azo Couplings with Enamines and Sulfonium Ylides
作者:Le Li、Robert J. Mayer、David S. Stephenson、Peter Mayer、Armin R. Ofial、Herbert Mayr
DOI:10.1002/chem.202201376
日期:2022.10.4
Enamines and sulfonium ylides attack the terminal nitrogen of diazoalkanes with rate-determining formation of zwitterions. The measured second-order rate constants were used to determine the one-bond electrophilicities E of the diazoalkanes. Pyrazolines obtained from the reactions of diazoalkanes with enamines are not formed by 1,3-dipolar cycloadditions, but by cyclization of hydrazonoenamines initially
[EN] SUBSTITUTED PYRAZOLE AMIDES<br/>[FR] AMIDES DE PYRAZOLE SUBSTITUÉS
申请人:GRUENENTHAL GMBH
公开号:WO2022263498A1
公开(公告)日:2022-12-22
The present invention relates to compounds according to general formula (I) which act as inhibitors of NaV1.8 and can be used in the treatment of pain.