A General and Convenient Route to Dithiophosphonate Salt Derivatives
作者:Werner E. Van Zyl、John P. Fackler
DOI:10.1080/10426500008082393
日期:2000.1.1
Abstract 2,4-Diaryl and 2,4-diferrocenyl-1,3-dithiadiphosphetane disulfide dimmers, (RP(S)S)2, where R = Ph (1a), 4-C6H4OMe (1b) or ferrocenyl (Fc) (1c) react with a variety of alcohols, silanols, or trialkylsilylalcohols to form dithiophosphonic acids in a one-flask procedure. The generated acids have a relatively strong acidity which, upon deprotonation, facilitates the facile high yield conversion
摘要 2,4-二芳基和 2,4-diferrocenyl-1,3-dithiadiphosphetane 二硫化物二聚体,(RP(S)S)2,其中 R = Ph (1a)、4-C6H4OMe (1b) 或二茂铁 (Fc) ( 1c) 与各种醇、硅烷醇或三烷基甲硅烷醇在一个烧瓶过程中反应形成二硫代膦酸。生成的酸具有相对强的酸度,其在去质子化时促进向[S2PR(OR')]-类型的单阴离子盐的容易的高产率转化。本研究报告了这些盐的系统制备,其中 R 和特别是 R' 基团都有变化。通过 31 P[1H] NMR 光谱和元素分析表征化合物。(1a) 的高质量单晶是从粘性熔体的缓慢冷却中获得的,这允许确定 X 射线晶体结构。已经获得了几种分离盐的定性溶解度数据,可为合成设计提供有价值的信息,尤其是在金属络合方面。标题盐是在水性和非水性溶剂中获得一系列新的过渡金属配合物的有效前体。
Facile synthesis of novel 6-methyl-5-phenyl-2-sulfido-1,2,3,5-tetrahydro-4<i>H</i>[1,2] oxazolo[4′,5′:5,6]pyrano[2,3-<i>d</i>][1,3,2]diazaphosphinines
作者:Tarik E. Ali、Mohamed A. Assiri、Somaia M. Abdel-Kariem、Ibrahim S. Yahia
DOI:10.1080/17415993.2018.1455837
日期:2018.9.3
ABSTRACT A number of 6-methyl-5-phenyl-2-sulfido-1,2,3,5-tetrahydro-4H[1,2]oxazolo[4′,5′: 5,6]pyrano[2,3-d][1,3,2]diazaphosphinines 4–11 were synthesized via an interaction of tetraphosphorus decasulfide and Lawesson’s reagent under different conditions with 6-amino-3-methyl-4-phenyl-4H-pyrano[3,2-d][1,2]oxazole-5-carbonitrile (3). The reaction mechanisms for these products were discussed. Structures