Sulphur-substituted organotin compounds. Part 8. Preparation and reactions of 3-(p-tolylthio)propyl- and 4-(p-tolylthio)butyl-triphenyltin. Interactions with tetracyanoethylene

Abstract

The reactions of SnPh₃[(CH₂)_nSC₆H₄Me-p](n= 3 or 4) with mercury(II) chloride, bromine, and iodine lead to phenyl–tin bond cleavage. In contrast, reactions with methyl iodide provide SnPh₃[(CH₂)_nI] and MeSC₆H₄Me-p. Charge-transfer adducts are formed between SnPh₃[(CH₂)_nSC₆H₄Me-p](n= 1–4) and tetracyanoethylene or p-bromoanil. The values of λ_max. of the complexes indicate similar donor character for SnPh₃[(CH₂)_nSC₆H₄Me-p](n= 2, 3, or 4); however, the compound SnPh₃(CH₂SC₆H₄Me-p) is a stronger donor.