Synthesis of Phosphonodithioate, Oxathiaphosphinin, Oxathiaphosphole, and Dithiaphosphole Derivatives from the Reaction of Lawesson's Reagent with Phenolic Mannich Bases and Oxime Derivatives
作者:Soher S. Maigali、Fouad M. Soliman、Rashad Shabana、Marwa El-Hussieny
DOI:10.1080/10426500802487607
日期:2009.9.18
The reaction of Lawesson'sreagent 1a, with niclosamide 2 proceeded by thionation and formation of carbothioamide 3 and the zwitterionic oxathiaphosphinin 4a. LR reacted with 8-hydroxyquinoline (5), 2-methylquinoline-4-ol (7), and β-naphthol (9) to give the phosphonodithioates 6, 8, or 10. The reaction of LR with the Mannich bases 11 and 14 afforded the oxathiaphosphinins 13 and 15, whereas the phosphonodithioates