STUDIES ON ORGANOPHOSPHORUS COMPOUNDS VI<sup>1–5</sup>: Utility of Lawesson's Reagent for Synthesis of Thiaphosphorine, Thioxanthene, and Thiaphosphole Derivatives
作者:Nadia R. Mohamed、Manal M. T. El-Saidi、Tayseer A. Abdallah、Afaf A. Nada
DOI:10.1080/10426500490485200
日期:2004.11.1
Arylidene malonate derivatives 2a-c reacted with Lawesson's reagent (1) LR in equimolar ratio to yield the oxathiaphosphorine derivatives 3a-c. The behaviour of LR towards cyclic ketones was also examined and yielded the thioxanthene derivatives 5a,b. On the other hand, arylidene pyrazolone 8 reacted with LR to give the phosphole 10. Aminobenzenethiophene 11 reacted with LR under reflux to produce the corresponding thiazaphosphorine 12.