260047-56-1

Basic information

• Product Name: C₁₂H₁₈BBr₂P
• CAS NO: 260047-56-1
• Molecular Weight: 363.868
• Mol File: 260047-56-1.mol

Chemical Properties

• CAS DataBase Reference: C₁₂H₁₈BBr₂P(CAS DataBase Reference)
• NIST Chemistry Reference: C₁₂H₁₈BBr₂P(260047-56-1)
• EPA Substance Registry System: C₁₂H₁₈BBr₂P(260047-56-1)

Safety Data

• Hazardous Substances Data: 260047-56-1(Hazardous Substances Data)

Upstream product

• 259752-60-8 diallylphenylphosphino-borane 

Downstream Products

• 259752-68-6 C₃₆H₄₄B₃P₃ 

Relevant articles and documents

Cyclo and spirozirconation: Synthesis of new phospholane-boranes and polyphosphine-boranes

The diallylic phosphine-borane Ph(BH3)P(allyl)2 6, reacts with the zirconocene 'Cp2Zr' and gives the bicyclocomplex intermediate 7, characterized by 1H and 31P NMR. The electrophilic addition of H+, Br2, PhPCl2(BH3), Ph2PCl(BH3) leads to the corresponding stabilized phospholanes 8, 9, 11 and bicyclophospholane 10, whereas Ph2P(BH3)Li on 9 gives the boro(phospholane-diphosphine) 12. Under the same conditions, the tetraallylsilane (or germane) 13a-b leads to the spirometallacyclopentane 14a-b intermediates. After reaction with Br2, Ph2PLi(BH3) and PhPCl2(BH3), the racemic spirannic tetraphosphines 16a-b and the protected spirannic diphosphine 17b are obtained with a remarkable selectivity. Decomplexation reaction by Et2NH gives corresponding free phosphines 3'-17'.