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Catalytic dehydrogenative coupling of diorganotindihydrides by lanthanide diamide complexes
Author(s) -
Schittelkopf Kathrin,
Fischer Roland C.,
Meyer Sarah,
Wilfling Petra,
Uhlig Frank
Publication year - 2010
Publication title -
applied organometallic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.53
H-Index - 71
eISSN - 1099-0739
pISSN - 0268-2605
DOI - 10.1002/aoc.1740
Subject(s) - chemistry , steric effects , synthon , lanthanide , yield (engineering) , catalysis , combinatorial chemistry , medicinal chemistry , stereochemistry , organic chemistry , ion , materials science , metallurgy
Despite the fact that sterically demanding 1,2‐dihydrodistannanes are versatile synthons, their synthesis is typically a tedious, low‐yield procedure, which limits synthetic applications. Looking for generally applicable and high‐yield routes, we examined the dehydrogenative coupling of sterically crowded diorganotindihydrides. Herein, we report the application of lanthanide diamide‐based catalysts (CH 2 ) 3 ‐1,3‐[N(Dipp)] 2 LnBr (Ln = La,Ce,Nd,Dy) to generate polystannanes and distannanes, depending on the size of the aromatic substituents. Reaction of t Bu 2 SnH 2 resulted in the quantitative formation of 1,1,2,2‐tetra‐ tert ‐butyldistannane while conversion of sterically encumbered Mes 2 SnH 2 yielded 1,1,2,2‐tetramesityldistannane. Copyright © 2010 John Wiley & Sons, Ltd.