KIM, CHANG-KYU;ZIELINSKI, P. A.;MAGGIULLI, C. A., J. ORG. CHEM., 1984, 49, N 26, 5247-5250
作者:KIM, CHANG-KYU、ZIELINSKI, P. A.、MAGGIULLI, C. A.
DOI:——
日期:——
A METHOD FOR PREPARING 2-PYRAZOLIN-5-ONES FROM 1,2,4-OXADIAZOLES
申请人:EASTMAN KODAK COMPANY (a New Jersey corporation)
公开号:EP0067845A1
公开(公告)日:1982-12-29
EP0067845A4
申请人:——
公开号:EP0067845A4
公开(公告)日:1983-04-25
US4345085A
申请人:——
公开号:US4345085A
公开(公告)日:1982-08-17
[EN] A METHOD FOR PREPARING 2-PYRAZOLIN-5-ONES FROM 1,2,4-OXADIAZOLES
申请人:EASTMAN KODAK COMPANY
公开号:WO1982002198A1
公开(公告)日:1982-07-08
(EN) The method comprises forming a liquid reaction system of a base catalyst and a 1,2,4-oxadiazole in an organic liquid reaction medium and heating the reaction system to a temperature sufficient to cause the 1,2,4-oxadiazole to be rearranged to a 2-pyrazolin-5-one. (FR) Le procede consiste a former un systeme liquide de reaction d'un catalyseur de base et un 1,2,4-oxadiazole dans un milieu de reaction liquide organique et a chauffer le systeme de reaction jusqu'a une temperature suffisante pour provoquer la transformation de 1,2, 4-oxadiazole en 2-pyrazoline-5-one.