Compounds of the formula (I) wherein the substituents are as defined in claim 1, useful as pesticides, especially as fungicides.
式(I)中的化合物,其中取代基如权利要求1所定义,作为杀虫剂特别是作为杀菌剂时有用。
TBHP/KI-Promoted Annulation of Anilines, Ethers, and Elemental Sulfur: Access to 2-Aryl-, 2-Heteroaryl-, or 2-Alkyl-Substituted Benzothiazoles
作者:Jie Zhang、Xin Zhao、Ping Liu、Peipei Sun
DOI:10.1021/acs.joc.9b02145
日期:2019.10.4
TBHP/KI-promoted annulation of anilines with ethers and elemental sulfur has been developed through the selective C-O bond cleavage of ethers under transition-metal-free conditions. A wide range of 2-aryl-, 2-heteroaryl-, and 2-alkyl-substituted benzothiazoles were easily prepared with satisfactory yields and good functional group compatibility.
作者:Donald J. Peterson、M.Dwight Robbins、John R. Hansen
DOI:10.1016/s0022-328x(00)85640-5
日期:1974.7
alk-3-en-1-yltin compounds to form electron deficient carbon atoms γ to tin. These incipient carbonium ions the electrophilically induce heterolytic fragmentations of the carbon-tin σ bonds (electrophilicdisplacement of R3Sn+) with concurrent ring formation. Cyclopropylmethoxy derivatives were similarly obtained from thermal and Lewis acid catalyzed cyclodestannylation reactions of 3,4-epoxybutyltri-n-butyltin.
通过烷基-3-烯丙基锡化合物的环去锡烷基化反应,已经制备了各种环丙基羰基化合物。认为环脱锡反应的初始阶段包括将亲电子试剂加到alk-3-en-1-yltin化合物的双键上,从而形成锡的电子不足的碳原子γ。这些初期的碳离子通过亲电方式诱导碳-锡σ键的杂溶裂解(R 3 Sn +的亲电置换)并同时形成环。环丙基甲氧基衍生物类似地从3,4-环氧丁基三正丁基锡的热和路易斯酸催化的环脱锡反应中获得。
Dynamic behaviour of carbocations on zeolites: mobility and rearrangement of the C4H7+ system
作者:Diego P. Kling、Erick S. A. Machado、Henrique C. Chagas、Alex P. A. dos Santos、Nilton Rosenbach、José Walkimar Carneiro、Claudio J. A. Mota
DOI:10.1039/c3cc40627j
日期:——
The mobility and rearrangement of the C4H7+ system over Chabazite were studied using ab initio molecular dynamics. The results indicated the high mobility of the cations, which can rearrange within picosecond time intervals. Experimental studies of nucleophilic substitution supported the theoretical findings.
研究人员使用 ab initio 分子动力学方法研究了 C4H7+ 系统在 Chabazite 上的迁移率和重排。结果表明,阳离子具有很高的迁移率,可在皮秒级的时间间隔内重新排列。亲核置换的实验研究支持了这一理论发现。