1357843-94-7

Basic information

• Product Name: 1,1-B₂(1,2-(NMe)2C₆H₄)2
• Synonyms: 1,1-B₂(1,2-(NMe)2C₆H₄)2
• CAS NO: 1357843-94-7
• Molecular Weight: 289.984
• Mol File: 1357843-94-7.mol
• Article Data: 3

Chemical Properties

• CAS DataBase Reference: 1,1-B₂(1,2-(NMe)2C₆H₄)2(CAS DataBase Reference)
• NIST Chemistry Reference: 1,1-B₂(1,2-(NMe)2C₆H₄)2(1357843-94-7)
• EPA Substance Registry System: 1,1-B₂(1,2-(NMe)2C₆H₄)2(1357843-94-7)

Safety Data

• Hazardous Substances Data: 1357843-94-7(Hazardous Substances Data)

Upstream product

• 76-09-5 2,3-dimethyl-2,3-butane diol 
• 1630-79-1 tetrakis(dimethylamido)diborane 
• 3213-79-4 N,N'-dimethyl-1,2-phenylenediamine 
• 624-31-7 4-tolyl iodide 

Relevant articles and documents

Syntheses, Structures, and Reactivity of NHC Copper(I) Boryl Complexes: A Systematic Study

Five novel NHC copper(I) boryl complexes were synthesized by B-B activation via σ-bond metathesis of symmetrical tetraalkoxy and unsymmetrical dialkoxy diamino diborane(4) derivatives. Despite their low stability, the NHC copper boryl complexes were thoroughly characterized spectroscopically and structurally. Variation of the NHC ligand (ItBu or Me2IiPr) as well as of the boryl ligand (Bpin, Bdmab, or BiPrEn) allowed, for the first time systematically, a study in such complexes of the dependence on steric encumbrance. For sterically more demanding ligand combinations, mononuclear linear complexes were obtained, while with less demanding ligand combinations, dimeric dinuclear complexes with two bridging μ-boryl ligands were obtained, exhibiting extremely short Cu···Cu distances (?). The decomposition of all these complexes was found to proceed via a common pathway, leading ultimately to elemental copper, the free NHC ligand, and the respective symmetrical diborane(4) derivative. The rate of decomposition depended strongly on the steric encumbrance of the individual complex. Two apparently low-valent copper clusters were observed and suggested to be relevant species with respect to the reductive decomposition of the copper(I) boryl complexes.

Selective synthesis of unsymmetrical diboryl ptii and diaminoboryl CuI Complexes by B-B activation of unsymmetrical diboranes(4) {pinB-B[(NR)2C6H4]}

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 PtII complexes as well as sterically little encumbered diaminoboryl CuI complexes.