Choline hydroxide promoted sustainable one-pot three-component synthesis of 1H-pyrazolo[1,2-a]pyridazine-2-carbonitriles under solvent-free conditions
作者:Shailesh N. Vajekar、Ganapati S. Shankarling
DOI:10.1080/00397911.2020.1720736
日期:2020.4.17
Abstract A sustainable one-potthree-componentsynthesis of novel 1H-pyrazolo[1,2-a]pyridazine-2-carbonitrile derivatives employing a highly efficient, biodegradable, and recyclable choline hydroxide catalyst undersolvent-free conditions is demonstrated. The salient features of this protocol are simple workup, mild reaction conditions, short reaction time (10 min), excellent yields (up to 97%), high
PYRIDAZINE DERIVATIVES, PROCESSES FOR THEIR PREPARATION AND THEIR USE AS FUNGICIDES
申请人:Lamberth Clemens
公开号:US20100022526A1
公开(公告)日:2010-01-28
The present invention relates to compounds of formula (I) wherein R
1
, R
2
, R
3
and R
4
are as defined in claim 1, which are useful as fungicides.
本发明涉及式(I)中的化合物,其中R1,R2,R3和R4如权利要求1所定义,其作为杀真菌剂有用。
[EN] PYRIDAZINE DERIVATIVES, PROCESSES FOR THEIR PREPARATION AND THEIR USE AS FUNGICIDES<br/>[FR] DÉRIVÉS DE PYRIDAZINE
申请人:SYNGENTA PARTICIPATIONS AG
公开号:WO2008089934A1
公开(公告)日:2008-07-31
[EN] The present invention relates to compounds of formula (I) wherein R1, R2, R3 and R4 are as defined in claim 1, which are useful as fungicides. [FR] L'invention concerne des composés de formule (I) où R1, R2, R3 et R4 sont tels que définis dans la revendication 1, et qui sont utiles comme fongicides.