Convenient methods for the synthesis of S-organothioarsenic(III) derivatives of tetrathiophosphoric and trithiophosphonic acids

A Berzelius Reagent, Phosphorus Decasulfide (P4S10), in Organic Syntheses

“…A similar reaction of organogermanium 591 , , organothiarsenic 592 , , and organoborates 593 , with P 4 S 10 produced the esters 594 , 595 , and 596 , respectively (Scheme ).…”

“…433 Treatment of alkoxy-586 and alkylthiotrimethylsilanes 587 with P 4 S 10 yielded s-trimethylsilyl esters of dithio-and tetrathiophosphoric acids 588 and 589, respectively, along with bis(trimethylsilyl)sulfide 590 (Scheme 148). [437][438][439][440] A similar reaction of organogermanium 591, 441,442 organothiarsenic 592, 442,443 and organoborates 593 444,445 with P 4 S 10 produced the esters 594, 595, and 596, respectively (Scheme 149). Reaction of benzyl chloride with P 4 S 10 in the presence of K 2 CO 3 in acetonitrile (dry) at 60-70 °C for 2 h gave tribenzyltetrathiophosphate (PhCH 2 S) 3 PdS.…”

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).…”