CsF-Celite, an Efficient Solid State Reagent for the Syntheses of Thioesters and Thioethers
作者:Syed T. A. Shah、Khalid M. Khan、Hidayat Hussain、Safdar Hayat、Wolfgang Voelter
DOI:10.1007/s00706-005-0351-6
日期:2005.9
Coupling reactions of a number of aliphatic, aromatic, and heterocyclic compounds bearing an acidic hydrogen atom attached to sulfur, with alkyl, acyl, benzyl, or benzoyl halides in acetonitrile with cesium fluoride-Celite are described. This procedure is convenient, efficient, and practical for the preparation of thioethers and thioesters.
Thiazolinium salts and their reactions with nucleophiles
作者:A. D. Clark、P. Sykes
DOI:10.1039/j39710000103
日期:——
2,3-Dialkyl- and 3-alkyl-2-aryl-2-thiazolinium salts were prepared by quaternisation of the corresponding 2-thiazolines. Some 3-alkyl-2-alkylthio-2-thiazolinium salts were obtained by quaternisation of 2-alkylthio-2-thiazolines; the products included bicyclic salts obtained from αω-dibromides and 2-thiazoline-2-thiol. In some cases attempted quaternisation yielded only the 3-alkylthiazolidine-2-thiones
The toxicity of organic sulphides to the eggs and larvae of the glasshouse red spider mite. vii.—Benzyl phenyl sulphides (α-substituted)
作者:J. E. Cranham、D. Greenwood、H. A. Stevenson
DOI:10.1002/jsfa.2740090305
日期:1958.3
The synthesis of a number of benzylphenylsulphides, substituted in the α-position of the benzyl moiety, is described and their toxicities to the eggs and young mites of the glasshouseredspider (Tetranychus telarius L.) are tabulated.
An alternative approach towards the syntheses of thioethers and thioesters using CsF–Celite in acetonitrile
作者:Syed Tasadaque Ali Shah、Khalid Mohammed Khan、Angelica Martinez Heinrich、Wolfgang Voelter
DOI:10.1016/s0040-4039(02)02028-2
日期:2002.11
It has been found that syntheses of thioethers and thioesters of aliphatic, aromatic and heterocyclic compounds, bearing thiol groups, can be accomplished with alkyl, acyl, benzyl or benzoyl halides in acetonitrile and cesium fluoride–Celite. In this manner, compounds like ethanethiol, 1-pentanethiol, thiophenol, 4-methoxythiophenol, 4-nitrothiophenol, and 2-mercaptobenzoxazole, 2-mercaptobenzothiazole
Thiazines and thiazoles as agents for protecting materials
申请人:——
公开号:US20030129081A1
公开(公告)日:2003-07-10
The novel and known thiazines and thiazoles of the formula (I)
1
in which
R
1
, R
2
and n are as defined in the description, are highly suitable for use as biocides for protecting industrial materials.