1391722-04-5

Basic information

• Product Name: Al₂(C₂H₅)4(P(C₆H₂(CH₃)3)(CH₂CH₃)CCHC(CH₃)3)2
• CAS NO: 1391722-04-5
• Molecular Weight: 692.944
• Mol File: 1391722-04-5.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: Al₂(C₂H₅)4(P(C₆H₂(CH₃)3)(CH₂CH₃)CCHC(CH₃)3)2(CAS DataBase Reference)
• NIST Chemistry Reference: Al₂(C₂H₅)4(P(C₆H₂(CH₃)3)(CH₂CH₃)CCHC(CH₃)3)2(1391722-04-5)
• EPA Substance Registry System: Al₂(C₂H₅)4(P(C₆H₂(CH₃)3)(CH₂CH₃)CCHC(CH₃)3)2(1391722-04-5)

Safety Data

• Hazardous Substances Data: 1391722-04-5(Hazardous Substances Data)

Upstream product

• 1214751-21-9 bis(3,3-dimethyl-1-butinyl)mesitylphosphine 
• 97-93-8 triethylaluminum 
• 871-27-2 diethylaluminium hydride 

Relevant articles and documents

Dimeric aluminum-phosphorus compounds as masked frustrated Lewis pairs for small molecule activation

Hydroalumination of aryldialkynylphosphines RP(CC-tBu) 2 (R = Ph, Mes) with equimolar quantities of diethylaluminum hydride afforded mixed alkenyl-alkynyl cyclic dimers in which the dative aluminum-phosphorus bonds are geminal to the exocyclic alkenyl groups. Addition of triethylaluminum to isolated 1 (R = Ph) or to the in situ generated species (R = Mes) caused diethylaluminum ethynide elimination to yield the arylethylphosphorus dimers 2 and 3. These possess a chair-like Al 2C2P2 heterocycle with intermolecular Al-P interactions. The boat conformation (4) was obtained by the reaction of tBu-P(CC-tBu)2 with di(tert-butyl)aluminum hydride. Despite being dimeric, 2 behaves as a frustrated Lewis pair and activates small molecules. The reaction with carbon dioxide gave cis/trans isomeric AlPC2O heterocycles that differ only by the configuration of the exocyclic alkenyl unit. Four isomers resulted from the reaction with phenyl isocyanate. This is caused by cis/trans isomerization of the initial CO adduct and subsequent rearrangement to the AlPC2N heterocycle, being the CN adduct.