Pyrolysis of triphenylphosphineacetylmethylenetrimethyl-tin chloride r
esults in dissociation to trimethyltin chloride and the ylid, both ide
ntified by elemental analysis and I.R. spectroscopy. No significant ch
ange was observed on continual heating of the ylid residue. (C) 1997 E
lsevier Science B.V.