New amidoesters of thiophosphoric acid

Abstract

The Todd--Atherton reaction of dialkyl thiophosphonates or O-alkyl piperididothiophosphonztes with monoethanolamine vinyl ether afforded the corresponding amidoesters of thiophosphoric acid.

Synthesis of 1,3,2-Dioxoazaphospholanes

“…The researches of properties of a number of Schiff bases containing amino groups, various on character, [8][9][10][11][12][13][14] were conducted in order to clarify the relationship between the structure and reactivity of vinyl ethers of amino alcohols.…”

“…Thus, organic phosphorus compounds containing R-C-N, P-O-C fragments deserve attention as effective bioactive, flotation and complexing agents. These compounds possess unique reactivity due to the mutual influence of geminal nitrogen and phosphorus atoms.Due to our research interests in the field of organophosphorus compounds chemistry[8][9][10], we conducted the reaction of N-vyniloxiethyl-1,3,2dioxaphospholane with elemental sulfur, and acylation were carried out in order to elucidate the reactivity of synthesized 1,3,2-dioxathiophospholanes. As a result, the corresponding alkyl and acyl derivatives of phospholanes were obtained:(6) The structure of the obtained substances confirmed by 31P NMR and IR spectroscopy.IR spectra (δ): P=S (630-650), Р-N (890-920), Р-О-С (1135-1180), С=С (1605-1625), N-H (3260-3280).…”

Applications of Lawesson′s Reagent in Organic and Organometallic Syntheses

“…18 Cherkasov et al included LR in their review about organothiophosphorus reagents. 19 Starting from these and other reviews [20][21][22][23][24][25][26][27] we re-examine the developments in the application of this powerful reagent and provide an overview about novel reactions and uses of Lawesson's reagent.…”