[ (苯基二甲硅基) 甲基]二环己基锡二硫代磷酸酯的合成

本文合成了[ (苯基二甲硅基) 甲基]二环己基锡二硫代磷酸酯. IR, NMR (^1H, ^1^3C, ^1^1^9Sn)和MS数据表明,这类化合物具有四配位的特征. 生物测定实验表明这些化合物具有高度的杀螨活性.     

三[（三甲硅基）亚甲基]锡芳香酸酯的研究

合成了１４个三［（三甲硅基）亚甲基］锡芳香酸酯，ＩＲ光谱显示该类化合物为四配位锡的单体结构，＾１１９Ｓｎ化学位移同苯环上对位取代基的Ｈａｍｍｅｔｔ常数间存在着良好的线性关系，生物活性测定结果表明，化合物的生物活性谱比相应的硅托尔克羧酸酯宽，且杀虫，抑菌效果更好。     

Studies of tris[(phenyldimethylsilyl)methylene]-tin carboxylates

Twenty-six derivatives of tris[(phenyldimethylsilyl)methylene]tin carboxylates have been prepared. All compounds are new and characterized through elemental analysis IR spectra, and ¹H, ¹³C, ¹¹⁰Sn NMR spectral studies. The spectral results showed that all compounds are four coordinated organotin compounds. The Δv (=υ?υ) of them are over 300 cm^?1. The chemical shifts (δ) of ¹¹⁹Sn of ArCO₂Sn(CH₂SiMe₂Ph)₃ and ArOCH₂CO₂Sn(CH₂SiMe₂Ph)₃ give good straight-line correlation with para-substituent constants. These compounds have good acaricide activity, but their action on the mite are slower than that of Torque.     

三苄基和三[(甲基二苯硅基)亚甲基]锡二硫代磷酸酯的研究

本文合成了七个三苄基锡二硫代磷酸酯和八个三[(甲基二苯硅基)亚甲基]锡二硫代磷酸酯, 测定了它们的IR, 1H, 119Sn和31P NMR, 119Sn NMR的化学位移与磷酸酯基的芳环对位取代基Hammett常数呈线性关系。表明该两类化合物均为四价锡的单分子有机锡化合物。     

Synthesis and characterization of chlorodiorganotin(IV) derivatives of O,O-alkylene dithiophosphates

The O,O-alkylene dithiophosphates of chlorodiorganotin(IV), (where R = Me, G =–CMe₂CMe₂–; R = Me, Bu; G =–CH₂CMe₂CH₂–, and R = Me, Bu, Ph; G =–CHMeCH₂CMe₂–) have been synthesized by reactions of diorganotindichloride with the ammonium salts of O,O-alkylene dithiophosphates in 1 : 1 molar ratio in benzene. These compounds have been characterized by IR, ¹H, ¹³C, ³¹P, and ¹¹⁹Sn NMR spectroscopy. Unlike triorganotin derivatives, the ligand is bidentate in these derivatives.     

三[(甲基二苯硅基)亚甲基]锡羧酸酯的研究

为寻找高效低毒杀螨剂,报道了通过改变Sila-Torgue羧酸酯的结构,用一个苯基代替一个甲基,观察其对生物活性及其配位结构的影响.合成了十八 个三[(甲基二苯硅基)亚甲基]锡羧酸酯.     

1,3-Bis[(di)alkylamino]-pentamethyldisilazane

1,3-Bis(alkylamino)pentamethyldisilazanes, which are important for the synthesis of special cyclotrisilazanes from different building units, could be prepared by reaction of 1,3-dichloropentamethyldisilazanes with alkylamines (equ. 5), or by transamination of 1,3-bis(methylamino)pentamethyldisilazane, which is easily obtained from dimethyldichlorosilane and methylamine, with higher primary amines (equ. 3). The properties of the compounds II–XI, prepared for the first time, may be taken from Table 1.     

Synthesis and characterization of cobalt(II), nickel(II) and copper(II) perchlorate complexes with bis [(diphenylphosphinyl)methyl] phenylphosphine oxide,bis [(disphenylphosphinyl)methyl]ethyl phosphinate,and bis [(diphenylphosphinyl)methyl] phosphinic acid

The synthesis and characterization of cobalt(II), nickel(II) and copper(II) perchlorate complexes containing bis [(diphenylphosphinyl)methyl] [phenylphosphine oxide (RPPH), bis [(diphenylphosphinyl)methyl] ethyl phosphinate (RPOEt), and bis [(diphenylphosphinyl)methyl] phosphinic acid (RPOH) have been studied. The substituent at the central phosphorus atom of the ligand is responsible for the types of complexes formed. The new complexes [M(RPPh)₂(ClO₄)₂.nH₂O, [M(RPPh)₃](ClO₄)₂.4H₂O, [M(RPOEt)₂](ClO₄)₂.2H₂O, and [M(RPOH)₃] (ClO₄)₂.nH₂O are characterized as high spin and most of them have an octahedral or distorted octahedral geometry [M = Co(II), Ni(II), or Cu(II); n = 2?5]. The coordination of two P = O groups from one ligand to the metal has been proposed for most of the complexes formed. The coordination of all three P = O groups has been assumed for complexes [M(RPPh)₂](ClO₄)₂.nH₂O and [M(RPOEt)₂](ClO₄)₂.2H₂O.     

Mono- und Bis-[(di)alkylamino-dimethylsilyl]-amine

Dialkylaminodimethylchlorosilanes react with sodium amide mainly to dialkylamino-dimethylsilyl-amines, besides to the free dialkylamine and cyclo- and polysilazanes. Bis(alkylamino)-dimethylsilanes can be isolated from the reaction of alkylaminodimethylchlorosilanes with NaNH₂. Dialkylaminodimethylsilanes are formed likewise in the reaction of alkylaminophenoxydimethylsilanes with NaNH₂. The analogous reaction of alkylaminophenoxydimethylsilanes leads on the other hand to 1,3-bis(alkylamino)-tetramethyldisilazanes.     

N－苯磺酰基甲基苯胺与芳醛的缩合反应

由Ｎ－苯磺酰基甲基苯胺与芳醛反应得到了７种缩合产物，其结构经元素分析、１ＨＭＲ、ＭＳ和ＩＲ所确证。     

Stereoselective trimerization of [(S)R]-[(p-tolylsulfinyl)methyl]-p-quinols and p-quinamines

[reaction: see text] The asymmetric synthesis of pentacyclic derivatives was achieved in a single step starting from enantiopure [(S)R]-[(p-tolylsulfinyl)methyl]-p-quinols or the nitrogen analogue, through a domino sequence involving four conjugate additions in excellent yields. Eight new stereogenic centers were created in one step and in a highly diastereoselective manner.     

三[(苯基二甲硅基)亚甲基]锡 O,O-二芳基二硫代磷酸酯的研究

本文合成了十五个新的[苯基二甲硅基]锡O,O-二芳基二硫代磷酸酯。测定了它们的IR, ^1H, ^1^3C, ^1^1^9Sn NMR及MS, ^1^1^9Sn NMR的化学位移δ和芳环对位取代基的Hammett常数σ之间存在良好的线性关系。     

Synthesis and structure of tetrakis[(chloromethyl)dimethylsilylethynyl]silane and -germane

Tetrakis[(chloromethyl)dimethylsilylethynyl]silane and -germane were synthesized by the reaction of BrMgCCSi(CH₂Cl)Me₂ with SiCl₄/GeCl₄. Their structures were proved by IR, NMR spectroscopy and X-ray analysis, and compared to the results of MP2/6-311G(d,p) calculations.     

[(Polyfluoroalkoxy)methyl]thiiranes and 2-anilinoethanethiols

By reaction of appropriate oxiranes with thiourea [(polyfluoroalkoxy)methyl]-substituted thiiranes were obtained that are key compounds for the synthesis of perfluoro-containing 1,2-aminopropanethiols.     

苯甲酸（1H－1，2，4－三唑－1－基）－3，3－二甲基－2－丁酮酯衍生物的合成

用冠醚作催化剂，通过苯甲酸盐同１－溴代－１－（１Ｈ－１，２，４－三唑－１－基）－３．３－二甲基丁酮－２－反应，合成了一系列苯甲酸（１Ｈ－１，２，４－三唑－１－基）－３，３－二甲基－２－丁酮酯类新化合物，并对合成方法进行了探讨。通过ＩＲ、￣１ＨＮＭＲ及元素分析，确定了化合物的结构。     

N-(Chlorodimethylsilyl)methyl anilides: synthesis and structure

N-(Chlorodimethylsilyl)methyl anilides of formula RC(O)N(C₆H₄X)CH₂SiMe₂Cl (R = Me, Ph; X = H, Me, Cl) were obtained by the reaction of N-TMS-containing anilides with ClCH₂Si(Hal)Me₂ (Hal = F, Cl). The silicon atom in these compounds is pentacoordinate according to the results of NMR and X-ray diffraction analysis.     

Synthesis of Trihydrocarbyltin Chloride Containing Silicon and Crystal Structure of (p-Cl-C6H4Me2SiCH2)3SnCl

IntroductionThe drug- molecules are called as silyl- drug ifasilicon atom replaced one carbon atom of theorganic- drugs.Generally,they have low toxicityand pro- long efficiency.Many methods have beendesigned in order to decrease the toxicity oforganotin compounds and organosilicon which hasbeen proved to be effective.Torque[1] is a newacaricide made by America Shell Company,itsmolecular formula is [( Ph Me2 Si CH2 ) 3 Sn]2 O.Tacker[2 ] synthesized the compounds( Ph Me2 Si CH2 ) 3 Sn X[…