Redistribution reactions of β-carboalkoxyethyltin compounds
作者:Joseph W. Burley、Ronald E. Hutton
DOI:10.1016/s0022-328x(00)85757-5
日期:1981.8
Carboalkoxyethyltin compounds undergo redistributionreactions at faster rates than similar unsubstituted alkyltin compounds. In redistributionreactions between SnCI4and carboalkoxyethyltin compounds stable intermolecular complexes are formed. Rate enhancement is explained in terms of intra- and intermolecular coordination effects. Where strong intermolecular coordination effects are observed, specific
Intramolecular Assistance of Electron Transfer. Oxidative Cleavage of the Carbon−Tin Bond of Tetraalkylstannanes
作者:Jun-ichi Yoshida、Mitsuhiko Izawa
DOI:10.1021/ja970899t
日期:1997.10.1
Experimental and theoretical studies of intramolecular assistance by carbonyl groups and heteroatoms in the electron transfer driven cleavage of the carbon-tin bond of tetraalkylstannanes has been carried out. Carbonyl groups and heteroatoms (oxygen and nitrogen) in an appropriate position of tetraalkylstannane facilitate the electron transfer and selective cleavage of the carbon-tin bond. Although the coordination of the carbonyl groups and heteroatoms to tin was not detected in the neutral molecules, molecular orbital calculations indicate that the coordination of such groups to tin in the cation radical intermediate stabilizes the system and weakens the carbon-tin bond. These results offer striking examples of the intramolecular assistance of electron transfer driven reactions.
LECAT, J. -L.;DAVAUD, M., J. ORGANOMET. CHEM., 1983, 244, N 3, 217-224
作者:LECAT, J. -L.、DAVAUD, M.
DOI:——
日期:——
PODESTA J. C.; CHOPA A. B.; KOLL L. C., J. CHEM. RES. SYNOP.,(1986) N 8, 308-309
作者:PODESTA J. C.、 CHOPA A. B.、 KOLL L. C.
DOI:——
日期:——
Organotin compounds
作者:J.C. Podestá、A.B. Chopa、A.D. Ayala、L.C. Koll
DOI:10.1016/s0022-328x(00)99028-4
日期:1987.10
stituted saturated methyl carboxylates (R Me, n-Bu, Ph) and trimethylsilyl halides (X Cl, Br, I) is reported. The results indicate that methyl β-(trialkylstannyl)propanoates react with trimethylsilyl halides to give alkyl/halide exchange products; no ester cleavage is observed even using organotin ester/silicon halide ratios of 14. The reactions carried out with ω-trialkylstannyl-substituted esters