2-Phenylthioallylation of Aldehydes with Allyl Phenyl Sulfides via Dibromination, Followed by Dehydrobromination

2-Phenylthioallyl bromides, derived from allyl phenyl sulfides via dibromination, followed by dehydrobromination, cause the 2-phenylthioallylation of aldehydes with tin(II) iodide, tetrabutylammonium iodide and sodium iodide in 1,3-dimethylimidazolidin-2-one to produce the corresponding 1-substituted 3-phenylthiohomoallyl alcohols.