Studies on organophosphorus compounds. Synthesis and reactions of 1,2,4-triazolo(4,3-d)-1,3,4,2-benzo-oxadiazaphosphopine and triazaphosphopine derivatives

Article abstract of DOI:10.1080/10426509908037005

2,4-Bis(4-methoxyphenyl)-1,3,2,4-dithiadiphosphetane-2,4-disulphide (Lawesson's Reagent, LR) reacted with 4-amino-3-mercapto-5-(o-hydroxyphenyl and/or o-aminophenyl)-1,2,4-triazoles (1a and 2a) in boiling acetonitrile to afford s-triazolo(4,3-d)-1,3,4,2-b