Nataliya A. Belogorlova

Aerobic addition of secondary phosphine oxides to vinyl sulfides: a shortcut to 1-hydroxy-2-(organosulfanyl)ethyl(diorganyl)phosphine oxides

Summary Secondary phosphine oxides react with vinyl sulfides (both alkyl- and aryl-substituted sulfides) under aerobic and solvent-free conditions (80 °C, air, 7–30 h) to afford 1-hydroxy-2-(organosulfanyl)ethyl(diorganyl)phosphine oxides in 70–93% yields.

Three-component reaction between elemental sulfur, primary phosphines, and amines: straightforward synthesis of organylammonium trithiophosphonates

Elemental sulfur reacts with primary phosphines and various amines in the 3:1:2 molar ratio under mild conditions (60°C, 10 min, ethanol) to afford hitherto unknown organylammonium trithiophosphonates in 84–91% yields.

An expedient synthesis of methyl vinyl sulfide from dimethyl disulfide and acetylene

Dimethyl disulfide reacts with acetylene under atmospheric pressure in basic reductive systems MOH (M=Na, K)–N2H4 · H2O–N-methylpyrrolidone and Na2S · 9H2O–N2H4 · H2O–N-methylpyrrolidone to form methyl vinyl sulfide in up to 79% yield.