The Reaction of Sulfenyl Chlorides with Thioethers. I. The Scope of the Reactions
作者:Michinori Oki、Keiji Kobayashi
DOI:10.1246/bcsj.43.1223
日期:1970.4
producing a rather stablecarboniumion, the thioether gives the chloride and an olefin, which are derived from the cation, the latter reacting also with the sulfenyl chloride to give adducts. There is another path to afford alkyl chloride; that is, an SN2-type reaction takes place when the alkyl part gives a less stablecarboniumion. The third and fourth products are α-chloro sulfide and α,β-unsaturated
A new protocol to synthesize 1,4-dihydropyridines by using 3,4,5-trifluorobenzeneboronic acid as a catalyst in ionic liquid: synthesis of novel 4-(3-carboxyl-1H-pyrazol-4-yl)-1,4-dihydropyridines
作者:Radhakrishnan Sridhar、Paramasivan T. Perumal
DOI:10.1016/j.tet.2005.01.008
日期:2005.2
liquid mediated facile synthesis of 4-pyrazolyl 1,4-dihydropyridines at room temperature by the cyclocondensation of ethyl 3-aminocrotonate, pyrazole aldehyde and a β-keto ester is reported. The procedure adopted was found to be eco-benign, facile at room temperature and better than the conventional, [bmim]Cl mediated and InCl3 catalysed, [bmim]Cl mediated 1,4-dihydropyridine syntheses.
Synthesis and properties of polychloro dialkyl sulfides
作者:R. Kh. Freidlina、R. G. Petrova、A. B. Terent'ev
DOI:10.1007/bf01179174
日期:1960.5
Design, synthesis and anti-microbial activity of 1H-pyrazole carboxylates
作者:Radhakrishnan Sridhar、Paramasivam T. Perumal、Sundaresan Etti、Guruswamy Shanmugam、Mondikalipudur N. Ponnuswamy、Vaiyapuri R. Prabavathy、Narayanasamy Mathivanan
DOI:10.1016/j.bmcl.2004.09.066
日期:2004.12
In a SAR study, we have synthesized a few 1H-pyrazole carboxylate related microbicides using Vilsmeier reagent. The anti-microbial screening results of 1H-pyrazole-3-carboxylate are reported here for the first time. The effect of 1 H-pyrazole carboxylates on the mycelial growth of plant pathogenic fungi is revealed. The first X-ray structure in the family of microbicidal 1H-pyrazole-4-carboxylates is presented. (C) 2004 Elsevier Ltd. All rights reserved.