2-Phenylthioallyl bromides, derived from allyl phenyl sulfides via dibromination, followed by dehydrobromination, cause the 2-phenylthioallylation of aldehydes with tin(II) iodide, tetrabutylammoniumiodide and sodium iodide in 1,3-dimethylimidazolidin-2-one to produce the corresponding 1-substituted 3-phenylthiohomoallyl alcohols.
Pt-Catalyzed Regio- and Stereoselective Thienylthiolation of Alkynes
作者:Takayoshi Hirai、Hitoshi Kuniyasu、Nobuaki Kambe
DOI:10.1246/cl.2004.1148
日期:2004.9
The Pt-catalyzed decarbonylative thienylthiolation of terminal alkynes by thienylthioesters took place regio- and stereoselectively under toluene reflux to give vinylsulfides with cis-thienyl group at β-carbon in moderate to good yields.
Intermolecular Aminoallylation of Alkenes Using Allyl-Oxyphthalimide Derivatives: A Case Study in Radical Polarity Effects
作者:Samuel W. Lardy、Valerie A. Schmidt
DOI:10.1002/ejoc.201901071
日期:2019.10.31
This work describes the essential radicalpolarityeffects manifested in pursuit of a group transfer radical addition to achieve alkeneaminoallylation. Each open shell intermediate along the proposed mechanistic pathway is steered to preferentially react with only one reagent.
3-dibromo-2-(phenylthio)propene intermediate 7. Three uses of 2 as an annulating agent for cycloheptanone are illustrated, demonstrating that this reagent is a synthetic equivalent of acetonyl halide and an alpha-halo vinyllithium. It is also readily converted to the useful synthons 2,3-bis(phenylthio)propene 16 and 2-phenylthio-3-(phenylsulfonyl)propene 17.