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Reaktionen eines freien Stannaimins und von Basen‐stabilisierten Stannylenen
Author(s) -
Ossig Günter,
Meller Anton,
Freitag Stefanie,
HerbstIrmer Regine,
Sheldrick George M.
Publication year - 1993
Publication title -
chemische berichte
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 0009-2940
DOI - 10.1002/cber.19931261013
Subject(s) - chemistry , benzonitrile , methyllithium , benzaldehyde , trimethylsilyl , aryl , medicinal chemistry , isocyanate , ketone , pyridine , organic chemistry , catalysis , alkyl , polyurethane
Reactions of a Free Stannaimine and of Base‐Stabilized Stannylenes The free stannaimine A reacts with methyllithium, 2,6‐diisopropylaniline, and methyl vinyl ketone to give the corresponding 1,2‐addition products (to the SnN bond) 2, 3 , and 10 . With 2,6‐diisopropylphenyl isocyanate and benzaldehyde [2 + 2] cycloadditions to the CO bonds lead to 4 and 5 , while with benzonitrile oxide and acroleine [2 + 3] and [2 + 4] cyclo‐additions produce 8 and 9 . The pyridine adducts bis‐[bis(trimethylsilyl)amino]stannylene and ‐germylene react with aryl azides to give the corresponding derivatives of tri‐amino‐2‐pyridylstannane 11 and ‐germane 12 . Bis[2‐pyridyl‐bis(trimethylsilyl)methyl]stannylene upon treatment with aryl azides form the 1‐aza‐8‐stannabicyclo[3.2.0]octa‐2,4,6‐triene systems 13 and 14 via stannaimine intermediates. X‐ray structure analyses are presented for 3, 11 , and 13 .