bifluororenylyl group. Methylphenyl(phenylethynyl)(2-phenylpropyl)tin and phenylethynyltrimethyltin react with LiAlH4; the phenylethynyl—tin bond is cleaved but the formed phenylacetylene and organotin hydride react together to give the expected adduct. Bifluorenyl-9-ylmethylneophylphenyltin is converted with LiAlH4, into 1,2-dimethyl-1,2-dineophyl-1,2-diphenylditin.
Stereochemistry at tin and mechanism of three cleavage reactions of carbontin bonds
作者:Marcel Gielen、Ivan Vanden Eynde
DOI:10.1016/s0022-328x(00)81003-7
日期:1981.10
The cleavages of the trityltin bond by NaFe(CO)2Cp, LiBHEt3 and Ph3-SnLi are not stereoselective. This is explained in terms of a one-electron transfer mechanism leading to a triorganostannyl radical which can undergo inversion before reacting with another radical to give the product.