Reactions of Lawesson′s Reagent With Arsenic (Iii) Alkoxides

Abstract

New arsenic (111) derivatives of 4-methoxyphenyldithio-and trithiophosphonic acids were obtained in the reactions of Lawesson's reagent with arsenic (111) alkoxides.

Reactions of dithioxo-1,3,2?5,4?5-dithiadiphosphetanes with antimony(III) alkoxides

“…We have recently developed convenient methods for the synthesis of S-organoarsenic(III) derivatives of tetrathiophosphoric, trithiophosphonic, and dithiophosphonic acids on the basis of the reactions of tetraphosphorus decasulfide and 1,3,2,4-dithiadiphosphetane-2,4-disulfides with alkylthioarsenites [16] and alkyl and phenyl ethers of arsinous acids, O,O-dialkyl(phenyl)arsonites, and triakylarsenites [17]. We have now extended this approach to antimony(III) derivatives having Sb-O bonds.…”

Synthesis, molecular and crystal structure, and properties of 10-propylthio-5,10-dihydrophenarsazine

“…We have recently developed facile methods for the synthesis of S-organoarsenic(III) derivatives of dithiophosphonic and trithiophosphonic acids by the action of 1,3,2,4-dithiadiphosphetane-2,4-disulfides [13,14]. We have now found that phenarsazine 2, containing a rather reactive As-S bond, reacts with 2,4-bis(ethylthio)-1,3,2,4-dithiadiphosphetane-2,4-disulfide 3 to yield S-10(5,10-dihydrophenarsazine) SЈ-ethyl SЉ-propyltetrathiophosphate 4 (Reaction 2).…”