Stabilization of Triorganotin Cations—Competition between Intramolecular Coordinative O, S or N Sn Bonds and Side??on π Coordination to C C Bonds

B Wrackmeyer, S Kundler, W Milius…

Index: Wrackmeyer, Bernd; Kundler, Sabine; Milius, Wolfgang; Boese, Roland Chemische Berichte, 1994 , vol. 127, # 2 p. 333 - 342

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Citation Number: 52

Abstract

Abstract Di-1-alkynyltin compounds 1 of the type Me 2 Sn (C [TRIPLE BOND] CUL) 2 [LU= 2- pyridyl (a), Me 2 NCH 2 (b), MeOCH 2 (c), MeOCH [DOUBLE BOND] CH (d), EtSCH 2 (e)] were prepared and the 1, 1-organoboration of 1 with triethyl-(2a) and triisopropylborane (2b) has been studied. The first detectable intermediates were in all cases zwitterionic compounds 3 (from Et 3 B) and 4 (from iPr 3 B) with a cationic triorganotin fragment, ...