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Ruthenium‐Catalyzed Dimethylamineborane Dehydrogenation: Stepwise Metal‐Centered Dehydrocyclization
Author(s) -
Friedrich Anja,
Drees Markus,
Schneider Sven
Publication year - 2009
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.200901372
Subject(s) - dehydrogenation , ruthenium , pincer movement , catalysis , chemistry , borane , dimer , metal , ammonia borane , medicinal chemistry , combinatorial chemistry , photochemistry , organic chemistry
Amine–borane dehydrogenation : Ruthenium PNP amido pincer complex I catalyzes the dehydrocoupling of dimethylamineborane to cyclic dimer (Me 2 NBH 2 ) 2 . The results are in agreement with a mechanism including initial alternative dehydrogenation to aminoborane Me 2 NBH 2 versus metal‐centered BN coupling via diborazane Me 2 HNH 2 BMe 2 NBH 3 . Formation of borametallacycle II , which features a rare four‐membered Ru–N–B–H ring, results in considerable slowdown of the catalytic activity.
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