Reaction of Lawesson's reagent with ester hydrazones: synthesis of novel 3-thioxo-1,2,3-diazaphospholine derivatives

Reaction of Lawesson's reagent with Mannich base hydrochlorides: synthesis of novel 4H-1,3,2-oxathiaphosphorine-2-sulfide derivatives

“…With this in mind, and in continuation of our research on the use of LR for the synthesis of novel heterocyclic scaffolds with possible biological properties, [20][21][22][23] we have investigated the reaction of LR with Mannich base hydrochlorides derived from acyclic and cyclic ketones, which could represent an easy and general method to access novel types of 4H-1,3,2-oxathiaphosphorine derivatives.…”