Synthesis of some novel thiadiazaphosphole, oxazaphospholothiadiazaphosphole, thiadiazaphosphinine and phosphonates containing a 1,2,4-triazine moiety

Abstract

Synthesis of some novel organophosphorus compounds bearing 1,2,4-triazinone moiety was achieved. The methodology depended on simple reactions between 4-amino-6-methyl-3-sulfanyl-1,2,4-triazin-5(4H)- one (1) and variable phosphorus reagents such as phosphorus halides and phosphorus sulfides as well as phosphorous acid and its esters. These reactions were performed in proper solvents under mild conditions giving good yields of phosphorylated 1,2,4-triazinones.