15525-20-9

Basic information

• Product Name: Diborane(6), di-m-amino-
• Synonyms: 1,3,2,4-Diazadiboretidine,tetrahydro- (7CI); 1,3-Diazonia-2,4-diboratacyclobutane (8CI); Boranamine,cyclic dimer; Boron, di-m-amidotetrahydrodi-; Cyclodiborazane
• CAS NO: 15525-20-9
• Molecular Formula: B2H8 N2
• Molecular Weight: 57.6989
• Mol File: 15525-20-9.mol
• Article Data: 2

Chemical Properties

• CAS DataBase Reference: Diborane(6), di-m-amino-(CAS DataBase Reference)
• NIST Chemistry Reference: Diborane(6), di-m-amino-(15525-20-9)
• EPA Substance Registry System: Diborane(6), di-m-amino-(15525-20-9)

Safety Data

• Hazardous Substances Data: 15525-20-9(Hazardous Substances Data)

Upstream product

• 10043-11-5 borane-ammonia complex 

Relevant articles and documents

Zirconium-Catalyzed Amine Borane Dehydrocoupling and Transfer Hydrogenation

κ5-(Me3SiNCH2CH2)2N(CH2CH2NSiMe2CH2)Zr (1) has been found to dehydrocouple amine borane substrates, RR′NHBH3 (R = R′ = Me; R = tBu, R′ = H; R = R′ = H), at low to moderate catalyst loadings (0.5-5 mol %) and good to excellent conversions, forming mainly borazine and borazane products. Other zirconium catalysts, (N3N)ZrX [(N3N) = N(CH2CH2NSiMe2CH2)3, X = NMe2 (2), Cl (3), and OtBu (4)], were found to exhibit comparable activities to that of 1. Compound 1 reacts with Me2NHBH3 to give (N3N)Zr(NMe2BH3) (5), which was structurally characterized and features an η2 B-H σ-bond amido borane ligand. Because 5 is unstable with respect to borane loss to form 2, rather than β-hydrogen elimination, and 2-4 do not exhibit X ligand loss during catalysis, dehydrogenation is hypothesized to proceed via an outer-sphere-type mechanism. This proposal is supported by the catalytic hydrogenation of alkenes by 2 using amine boranes as the sacrificial source of hydrogen.