193673-87-9

Basic information

• Product Name: bis(2,6-diisopropylphenolato)aluminum hydride-bis(tetrahydrofuran)
• CAS NO: 193673-87-9
• Molecular Weight: 526.736
• Mol File: 193673-87-9.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: bis(2,6-diisopropylphenolato)aluminum hydride-bis(tetrahydrofuran)(CAS DataBase Reference)
• NIST Chemistry Reference: bis(2,6-diisopropylphenolato)aluminum hydride-bis(tetrahydrofuran)(193673-87-9)
• EPA Substance Registry System: bis(2,6-diisopropylphenolato)aluminum hydride-bis(tetrahydrofuran)(193673-87-9)

Safety Data

• Hazardous Substances Data: 193673-87-9(Hazardous Substances Data)

Upstream product

• 109-99-9 tetrahydrofuran 
• 124330-23-0 alane-N,N-dimethylethylamine complex 
• 2078-54-8 2,6-diisopropylphenol 

Relevant articles and documents

Synthesis and Structure of Alkoxy- and (Aryloxy)alanes. Observation of a Ring-Opening Reaction Involving Tetrahydrofuran

Dihydrogen elimination from aluminum hydrides and alcohols was used to produce new alkoxide and aryloxide complexes. Dimethylethylamine-alane (DMEAA) reacted with 2 equiv of 2,6-diisopropylphenol (DIPH) in THF at -78 °C to give (DIP)2:A1H·2THF (1) in 94% yield. It was characterized by NMR, IR, MS. and X-ray crystallography and found to be trigonal bipyramidal with both axial sites occupied by THF. Crystal data for 1: C32H51AlO4, monoclinic, C2/c, a = 21.37(1) A?, b = 9.324(3) A?, c = 15.30(1) A?, β = 94.16(5)°, V = 3040(5)A?3, Z = 4. DMEAA reacted with 2 equiv of triphenylcarbinol, Ph3COH, in THF at -78 °C to give (Ph3CO)2AIH· THF (2) in 42% yield. The lower coordination number was attributed to the larger cone angle of the ligand. Crystal data for 2: C42H39AlO3, triclinic, P1?, a = 8.482(1) A?, b = 9.067(1) A?, c = 23.59(1)°, α = 90.919(1)°, β = 92.624(1)°, γ = 116.093(1)°, V = 1626.2(2) A?3, Z = 2. Three equivalents of DIPH in THF reacted with DMEAA at -78 °C to form the unexpected compound (DIP)3(THF)(NMe2Et)Al (3) in 89% yield. Both solution spectroscopic and X-ray crystallographic data established that THF underwent a ring-opening reaction. Crystal data for 3: C44H70AlNO4, monoclinic, Cc, a = 23.50(1) A?, b = 10.81(1) A?, c= 19.37(1) A?, β= 122.25(3)°, V = 4162(2) A?, Z = 4.