158752-93-3

Basic information

• Product Name: 2,3-bis(diethylamino)-1,4-dimethyl-1,4,2,3-diazadiborinane
• Synonyms: 2,3-bis(diethylamino)-1,4-dimethyl-1,4,2,3-diazadiborinane
• CAS NO: 158752-93-3
• Molecular Weight: 252.019
• Mol File: 158752-93-3.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: 2,3-bis(diethylamino)-1,4-dimethyl-1,4,2,3-diazadiborinane(CAS DataBase Reference)
• NIST Chemistry Reference: 2,3-bis(diethylamino)-1,4-dimethyl-1,4,2,3-diazadiborinane(158752-93-3)
• EPA Substance Registry System: 2,3-bis(diethylamino)-1,4-dimethyl-1,4,2,3-diazadiborinane(158752-93-3)

Safety Data

• Hazardous Substances Data: 158752-93-3(Hazardous Substances Data)

Upstream product

• 101315-57-5 1,2-bis(diethylamino)diboron dibromide 
• 54760-74-6 dilithium N,N'-dimethylethylenediaminate 

Relevant articles and documents

Contribution to the Chemistry of Boron, 222. Chemistry of Diborane(4) Derivatives: Mixed Tetraaminodiboranes(4) and Additions of Diborane(4) Derivatives to an Amino-imino-borane

Several transamination reactions of B2(NMe2)4 (1a) with secondary amines have led to mixed tetraaminodiborane(4) compounds B2(NMe2)4-n(NR2)n (2-4), and B2(NC5H10)4 (1d) has been characterized by an X-ray structure analysis which reveals the presence of a rather long B-B bond (1.75 Angstroem).However, tetraaminodiboranes(4) of type R2N(Me2N)B-B(NMe2)NR2 are more readily accessible from LiNR2 and B2(NMe2)2Cl2.Similarly, amination of B2(NMe2)2Cl2 with N,N'-dimethylethylenediamine (7) yields B--N,N'-dimethyl-1,3,2-diazaborolidine (8), while reactions with Li(Me)N-CH2-CH2-N(Me)Li (9) lead also to 2,3-bis(dimethylamino)-1,4-dimethyl-1,4,2,3-diazadiborinane (10) as the kinetically controlled product.This is further substantiated by the reaction of the B2(NMe2)2Br2 with 9 which gives exclusively the corresponding 1,4,2,3-diazadiborinane 11.Diborane(4) dihalides B2(NMe2)2X2 (X = Cl, Br) react only in 1:1 ratio with tmp-BN-CMe3 (13) leading to 14a, b.However, both a 1:1 and 1:2 methoxyboration of 13 has been observed with B2(OMe)4 with formation of 15 and 16. - Key Words: Diborane(4), tetraamino-, derivatives / Diborane(4), tetrapiperidino / 1,2,3,6-Diazadiborinane derivatives / Haloboration / Methoxyboration