A Simple Copper-Catalyzed Cascade Synthesis of 2-Amino-1H-indole-3-carboxylate Derivatives
摘要:
AbstractWe have developed a simple and efficient copper‐catalyzed method for the synthesis of 2‐amino‐1H‐indole‐3‐carboxylate derivatives via cascade reactions of substituted N‐(2‐halophenyl)‐2,2,2‐trifluoroacetamide with alkyl 2‐cyanoacetate or malononitrile under mild conditions, and the method is of wide practical application.
N-ARYLAMIDINE-SUBSTITUTED TRIFLUOROETHYL SULFIDE DERIVATIVES AS ACARICIDES AND INSECTICIDES
申请人:BAYER CROPSCIENCE AG
公开号:US20140315898A1
公开(公告)日:2014-10-23
The present invention relates to novel N-arylamide-substituted trifluoroethyl sulfide derivatives of the formula (I)
in which X
1
, X
2
, X
3
, X
4
, R
1
, R
2
, R
3
, n have the meanings given in the description—to their use as acaricides and insecticides for controlling animal pests and to processes and intermediates for their preparation
We have developed a highly efficient method for the copper-catalyzed coupling of 2-haloacetanilides with phosphine oxides and phosphites in the presence of a catalytic amount of copper(I) iodide and N-methylpyrrolidine-2-carboxamide under mild conditions (45-55 °C); the P-arylation products were synthesized in good to excellent yields in short times using 2-bromotrifluoroacetanilides and 2-iodotrifluoroacetanilides
N-arylamidine-substituted trifluoroethyl sulfide derivatives as acaricides and insecticides
申请人:BAYER CROPSCIENCE AG
公开号:US10051861B2
公开(公告)日:2018-08-21
The present invention relates to novel N-arylamide-substituted trifluoroethyl sulfide derivatives of the formula (I)
in which X1, X2, X3, X4, R1, R2, R3, n have the meanings given in the description—to their use as acaricides and insecticides for controlling animal pests and to processes and intermediates for their preparation.