Highly coordinate organosilicon compounds in synthesis: New entry to S,N-acetals by selective reduction of alkylthiomethyleniminium salts by use of trimethoxysilane and dilithium 2,3-butandiolate
Reduction of alkylthiomerthyleniminium iodides proceeds smoothly by use of trimethoxysilane and dilithium 2,3-butandiolate in tetrahydrofuran at 0°C to give the corresponding S,N-acetals selectively in high yield.
One-step synthesis of imidazo[1,2-a]pyridines in water
作者:H. Zali-Boeini、N. Norastehfar、H. Amiri Rudbari
DOI:10.1039/c6ra17065j
日期:——
A novel straightforward method for the synthesis of 2,3-disubstituted imidazo[1,2-a]pyridine derivatives in water as a truly safe and cheap reaction medium was developed. Hence, N-alkyl pyridinium and S-alkyl thiouronium salts were reacted in the presence of NaHCO3 as a mild base in water to produce imidazo[1,2-a]pyridines in moderate to excellent yields.
开发了一种新颖的直接方法,用于在水中合成2,3-二取代的咪唑并[1,2- a ]吡啶衍生物,将其作为一种真正安全且廉价的反应介质。因此,使N-烷基吡啶鎓盐和S-烷基硫代铀盐在水中作为弱碱的NaHCO 3存在下反应,以中等至优异的产率生产咪唑并[1,2- a ]吡啶。
777. Antituberculous compounds. Part X. Some reactions of quaternary compounds derived from NN-disubstituted thioamides
作者:D. A. Peak、F. Stansfield
DOI:10.1039/jr9520004067
日期:——
Chabrier et al., Bulletin de la Societe Chimique de France, 1950, p. 1167,1173
作者:Chabrier et al.
DOI:——
日期:——
Okecha,S.A.; Stansfield,F., Journal of the Chemical Society. Perkin transactions I, 1977, p. 1811 - 1814