SUBSTITUTED THIOPHENYL URACILS, SALTS THEREOF AND THE USE THEREOF AS HERBICIDAL AGENTS
申请人:Syngenta Crop Protection AG
公开号:US20200315174A1
公开(公告)日:2020-10-08
The invention relates to substituted thiophenyl uracils of general formula (I) or the salts (I) thereof, wherein the groups in general formula (I) are as defined in the description, and to the use thereof as herbicides, in particular for controlling weeds and/or weed grasses in crops of cultivated plants and/or as plant growth regulators for influencing the growth of crops of cultivated plants.
DIAD-mediated metal-free cross dehydrogenative coupling between tertiary amines and α-fluorinated sulfones
作者:Weizhou Huang、Chuanfa Ni、Yanchuan Zhao、Jinbo Hu
DOI:10.1039/c2nj40842b
日期:——
A DIAD-mediated metal-free cross dehydrogenative coupling involving aliphatic tertiary amines and α-fluorinated sulfones leading to β-fluorinated amines was developed. This protocol represents the first direct fluoroalkylation of CâH bonds with hydrofluorocarbon derivatives (RFâH).
Visible-Light-Promoted CC Bond Cleavage: Photocatalytic Generation of Iminium Ions and Amino Radicals
作者:Shunyou Cai、Xinyang Zhao、Xinbo Wang、Qisong Liu、Zigang Li、David Zhigang Wang
DOI:10.1002/anie.201202880
日期:2012.8.6
Photoscissors: Structurally variable and synthetically robust iminiumions and aminoradicals species could be simultaneously generated by visible‐light‐promoted photoredox cleavage of the CC bonds in simple vicinal diamine precursors under very mild reaction conditions.
Fluorous-tethered quenching reagents for solution phase parallel synthesis
作者:Craig W. Lindsley、Zhijian Zhao、William H. Leister
DOI:10.1016/s0040-4039(02)00748-7
日期:2002.6
Commercially available fluorous-tethered reagents are employed to quench excess reactants and remove known impurities from crude reaction mixtures generated via solutionphaseparallelsynthesis. Fluorous quenching reagents are expediently removed via FluoroFlash™ SPE columns to afford products in high yields and purities.