119Sn NMR Spectra of Some Carbohydrate Organotin Derivatives |
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| Authors: | Slawomir Jarosz Elzbieta Kozlowska Jerzy Sitkowski Lech Stefaniak |
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| Institution: | Institute of Organic Chemistry, Polish Academy of Sciences , Kasprzaka 44\52, 01-224, Warszawa, 42, P.O.B. 58, Poland |
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| Abstract: | Abstract The 119Sn NMR spectra of several sugar-tin derivatives were recorded. The geometric and steric isomers of all of the organotin derivatives studied were easily differentiated by 119Sn NMR. The appropriate 119Sn resonances are: ca - 50 ppm for trans and ?60 ppm for cis vinyltin derivatives (1-3), ca 16 ppm for allyltins 4-6, and ca ?32 ppm for tin-carbinols 9 and 11. When the hydroxyl group in carbinol 9 was converted to an O-acetyl group, the chemical shift of 119Sn was shifted to ?22 ppm. |
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