Disilyl dithiophosphonates in the synthesis of open chain and cyclic organothiophosphorus compounds

Abstract

Abstract O ‐(Trimethylsiloxy)alkyl S ‐trimethylsilyl aryldithiophosphonates 7a–d were obtained by the reaction of 2,4‐diaryl‐1,3,2,4‐dithiadiphosphetane‐2,4‐disulfides 5a,b with disilyl derivatives of glycols 6a,c and salicyl alcohol 6b . The reactions of mixed O,S ‐bis(trimethylsilyl) 2,4‐di(3,5‐di‐tert‐butyl‐4‐hydroxyphenyl)dithiophosphonate 1 and S ‐silyl aryldithiophosphonates 7a,b with S,S ‐diethyldithiodiphenylgermane 2 , dichlorodiphenylgermane 8a , and dichlorodiphenylstannane 8b were studied. The structure of hexaphenyl‐2,4,6,1,3,5‐trithiatrigerminane 11 was established by X‐ray single crystal diffraction. © 2004 Wiley Periodicals, Inc. Heteroatom Chem 15:225–232, 2004; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/hc.20009