Synthesis of some naphthyl-substituted nitrogen heterocycles on the basis of (Z)-3-chloro-3-(2-naphthyl)propenal
作者:E. V. Vashkevich、V. I. Potkin、N. G. Kozlov
DOI:10.1007/s11178-005-0050-0
日期:2004.10
β-Naphthyl-substituted derivatives of pyrazole, benzodiazepine, isoxazole, and pyrimidine were synthesized by reactions of (Z)-3-chloro-3-(2-naphthyl)propenal with hydrazine, o-phenylenediamine, hydroxylamine, and formamide, respectively.
A highly enantioselective method for the complete hydrogenation of pyrimidinium salts using Ir/(S,S)-f-Binaphane complex as the catalyst was presented in this study. This approach affords facile access to a range of fully saturated chiral hexahydropyrimidines, which are prevalent in many bioactive molecules. The reactions showcase high yields and enantioselectivities under mild reaction conditions
Metal- and Solvent-Free Synthesis of Substituted Pyrimidines via an NH<sub>4</sub>I-Promoted Three-Component Tandem Reaction
作者:Fang Fang、Jie Xia、Siying Quan、Shanping Chen、Guo-Jun Deng
DOI:10.1021/acs.joc.3c01700
日期:2023.10.20
A facile and practical approach for the preparation of substituted pyrimidines from ketones, NH4OAc, and N,N-dimethylformamide dimethyl acetal has been described. This NH4I-promoted three-component tandem reaction affords a broad range of substituted pyrimidines in acceptable yields under metal- and solvent-free conditions. The present methodology features the advantages of simple and easily available
已经描述了由酮、NH 4 OAc和N , N-二甲基甲酰胺二甲基缩醛制备取代嘧啶的简单且实用的方法。这种 NH 4 I 促进的三组分串联反应在无金属和无溶剂的条件下以可接受的产率提供了多种取代的嘧啶。该方法具有起始原料简单易得、无金属和溶剂条件、底物范围广、官能团耐受性好以及克级合成等优点。