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A Stable Stannaethene
Author(s) -
Meyer Harald,
Baum Gerhard,
Massa Werner,
Berger Stefan,
Berndt Armin
Publication year - 1987
Publication title -
angewandte chemie international edition in english
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 0570-0833
DOI - 10.1002/anie.198705461
Subject(s) - carbene , ylide , character (mathematics) , polar , nuclear magnetic resonance spectroscopy , chemistry , crystallography , spectroscopy , stereochemistry , physics , organic chemistry , mathematics , geometry , quantum mechanics , catalysis
The stable stannanediyl 2 and the carbene‐like species 1 react to give stannaefhene 3 . The structure of 3 was established by NMR spectroscopy and by X‐ray structure analysis. The very high‐frequency 119 Sn‐NMR signal indicates that the C=Sn bond has strongly polar character (ylide form 3A ). R 1 = Si(CH 3 ) 3 ; R 2 = C(CH 3 ) 3 ; R 3 = CHR 2 1 .