79812-30-9

Basic information

• Product Name: Tetraisopropyldiboran⁽⁴⁾
• CAS NO: 79812-30-9
• Molecular Weight: 193.976
• Mol File: 79812-30-9.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: Tetraisopropyldiboran⁽⁴⁾(CAS DataBase Reference)
• NIST Chemistry Reference: Tetraisopropyldiboran⁽⁴⁾(79812-30-9)
• EPA Substance Registry System: Tetraisopropyldiboran⁽⁴⁾(79812-30-9)

Safety Data

• Hazardous Substances Data: 79812-30-9(Hazardous Substances Data)

Upstream product

• 7318-94-7 tetramethoxydiborane 
• 1888-75-1 isopropyllithium 

Downstream Products

• 1776-66-5 triisopropylborane 
• 22694-41-3 Diisopropylboran 

Relevant articles and documents

Beitraege zur Chemie des Bors, 120. Tetraorganyldiborane(4): Darstellung und Stabilitaet

tert-Butylation of B2(OCH3)4 by LiC(CH3)3 proceeds via (CH3O)B-B(OCH3) (1) to give tri-tert-butylmethoxydiborane(4) (2).Tetraalkylation of B2(OCH3)4 is achieved by isopropyllithium; no reaction intermediates were found in this case.Al(C2H5)3 reacts with B2(OCH3)4 to give B2(C2H5)4 which is stable only below -30 deg C.On the other hand the CH3O group in 2 is replacable by CH3, and the CH3O groups in 1 by ethyl groups.Thus, product control by steric factors is evident.The thermal stability of tetraorganyldiboranes(4) is controlled by the steric screening of the boron atoms: tetraisopropyldiborane(4) decomposes slowly at room temperature, tetraethyldiborane(4) rapidly at -20 deg C.