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Selective Synthesis of Unsymmetrical Diboryl Pt II and Diaminoboryl Cu I Complexes by B–B Activation of Unsymmetrical Diboranes(4) {pinB–B[(NR) 2 C 6 H 4 ]}
Author(s) -
Borner Corinna,
Kleeberg Christian
Publication year - 2014
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/ejic.201402234
Subject(s) - chemistry , diborane , pincer movement , moiety , metathesis , steric effects , medicinal chemistry , stereochemistry , group 2 organometallic chemistry , boranes , combinatorial chemistry , molecule , catalysis , boron , organic chemistry , polymer , polymerization
Diaminoboryl ligands are currently intensively investigated because of their unique coordination chemical properties, for example, as part of pincer ligands. Owing to synthetic restrictions, however, access to diaminoboryl complexes is limited. Unsymmetrical diborane(4) derivatives comprising a dialkoxy‐ and a diaminoboron moiety provide efficient access to diaminoboryl complexes either by oxidative addition or by σ‐bond metathesis reactions. Especially, the latter is complementary to existing methods and overcomes the existing limitations. This is illustrated by the modular synthesis of four unsymmetrical diborane(4) derivatives and their application in the selective preparation of unprecedented unsymmetrical diboryl Pt II complexes as well as sterically little encumbered diaminoboryl Cu I complexes.