Thiophene derivatives and fungicides for agricultural and horticultural purposes containing as their active ingredients said derivatives. The thiophene derivatives are represented by the general formula (I)
wherein X represents: H, alkalimetal, -NH4, -COR1, -CO-lower alkyl-R2,
di-lower alkylcarbamoyl, mono-lower alkylcarbamoyl, cycloalkylcarbamoyl, -COOR3, SO2R4
Y represents: -COOR6, H or
; and Z represents: -COOR6,
provided that both Y and Z are not -COOR6 (R6 = alkyl, lower alkenyl or lower alkynyl). When X represents H, alkali metal or -NH4. Processes for producing said derivatives are described.
噻吩衍生物以及含有上述衍生物作为活性成分的农业和园艺用杀菌剂。噻吩衍生物由通式 (I) 表示
其中 X 代表H、烷亚金属、-NH4、-COR1、-CO-低级烷基-R2、
二低烷基氨基甲酰基、单低烷基氨基甲酰基、环烷基氨基甲酰基、-COOR3、SO2R4
Y 代表-COOR6、H 或
Z代表-COOR6、
条件是 Y 和 Z 都不是-COOR6(R6 = 烷基、低级烯基或低级炔基)。当 X 代表 H、碱金属或-NH4 时。描述了生产上述衍生物的工艺。
Deprotonative Metalation of Aromatic Compounds by Using an Amino-Based Lithium Cuprate
作者:Tan Tai Nguyen、Nada Marquise、Floris Chevallier、Florence Mongin
DOI:10.1002/chem.201100990
日期:2011.9.5
employed to attempt the interception of the generated aryl cuprates, aroyl chlorides, iodomethane, and diphenyl disulfide efficiently reacted. In addition, different oxidative agents were identified to afford symmetrical biaryls. Finally, palladium‐catalyzed coupling with arylhalides was optimized and allowed the synthesis of different arylderivatives in medium to good yields.