Regioselective reduction of substituted dinitroarenes using baker's yeast
作者:Claire L. Davey、Lawson W. Powell、Nicholas J. Turner、Andrew Wells
DOI:10.1016/0040-4039(94)80139-8
日期:1994.10
A range of substituted dinitroaromatic compounds have been reduced usingbaker'syeast (Saccharamyces cerevisiae), in some cases with very high selectivity. A model is presented to account for the origin of the selectivity together with a possible mechanism for the reduction.
this report, the combination of masked inorganic sulfur and dimethyl carbonate was designed to achieve thiomethylated cross coupling of aryl chlorides. Remarkably, this powerful strategy realized thiomethylation of nucleosides bearing unprotected ribose, chloride-containing pharmaceuticals with late-stage coupling, and herbicides possessing multiple heteroatoms and steric hindrance. Moreover, this protocol
The thiolate anion as a nucleophile part X. Reactions of some nitrofluoroaromatics
作者:Maurice E. Leblanc、Michael E. Peach、Heather M. Winter
DOI:10.1016/s0022-1139(00)81286-5
日期:1981.3
nitrofluorobenzenes, C6HxFyNO2, with sodium methanethiolate have been studied in ethylene glycol/pyridine mixture as solvent. All the fluorine atoms, but not the nitrogroups, could be substituted by the methylthio group. The reactions have also been studied with the addition of a deactivating group, either methyl or amino, on the aromatic nucleus. Some of the methylthio groups in the products were oxidized to the corresponding
在乙二醇/吡啶混合物为溶剂中,研究了各种硝基氟苯,C 6 H x F y NO 2与甲硫醇钠的反应。所有的氟原子而不是硝基都可以被甲硫基取代。还已经研究了在芳族核上添加甲基或氨基失活基团的反应。产物中的一些甲硫基被氧化为相应的砜。已对分离出的新化合物进行了表征,并检查了其光谱(IR,NMR和质量)。
Fries, Justus Liebigs Annalen der Chemie, 1927, vol. 454, p. 204