Mild and efficient method for the cleavage of cyclic and acyclic ethers by iodine under solvent-free conditions
作者:J.S. Yadav、B.V.S. Reddy、P. Murali Krishna Reddy、Manoj K. Gupta
DOI:10.1016/j.tetlet.2005.10.017
日期:2005.12
Ethers undergo smooth cleavage with acylchlorides in the presence of a catalytic amount of elemental iodine under extremely mild conditions to give the corresponding halo esters. This new procedure offers significant advantages such as high conversions, short reaction times and enhanced selectivity together with mild reaction conditions, which makes it an attractive strategy.
Pyrrole and its derivatives react smoothly with acid chlorides and sulfonyl chlorides in the presence of zinc metal in toluene at ambient temperature to afford the corresponding 2-acetyl and 2-sulfonyl pyrrole derivatives in high yields with high regioselectivity.
InBr3-catalyzed sulfonation of indoles: a facile synthesis of 3-sulfonyl indoles
作者:J.S. Yadav、B.V.S. Reddy、A.D. Krishna、T. Swamy
DOI:10.1016/s0040-4039(03)01507-7
日期:2003.8
Indoles react smoothly with sulfonyl chlorides in the presence of a catalytic amount of indium tribromide at ambient temperature to afford the corresponding 3-arylsulfonyl indole derivatives in high yields with high regioselectivity.
[EN] PYRETHROID INSECTICIDE FOR PROTECTING PLANTS AND SEED<br/>[FR] INSECTICIDE PYRÉTHROÏDE POUR LA PROTECTION DE PLANTES ET DE SEMENCES
申请人:BASF SE
公开号:WO2014045228A1
公开(公告)日:2014-03-27
The present invention relates to pyrethroid insecticides and the stereoisomers thereof and to compositions comprising the same. The invention also relates to the use of the insecticides or compositions comprising such insecticides for combating invertebrate pests. Furthermore, the invention relates to methods of applying such insecticides.
[EN] METHODS FOR PREVENTING PEST INFESTATIONS<br/>[FR] PROCÉDÉS POUR EMPÊCHER LES INFESTATIONS PAR DES ANIMAUX NUISIBLES
申请人:BASF SE
公开号:WO2014047334A1
公开(公告)日:2014-03-27
Methods for preventing pest infestations are disclosed. In some embodiments, the methods for preventing infestations involve use of pyrethroid insecticides or the stereoisomers or salts thereof.