118331-74-1

Upstream product

• 10375-18-5 Bis-tert.-butylamino-phenylboran 
• 42423-16-5 {t-butyl(trimethylsilyl)amino}chloro(phenyl)borane 
• 136064-71-6 (C₆H₅BNC(CH₃)3)3 

Downstream Products

• 118331-83-2 t-butyl(diethylboryl){ethyl(phenyl)boryl}amine 
• 118331-88-7 1-t-butyl-4-isobutyl-5-phenyl-Δ(2)-tetrazaboroline 
• 136064-71-6 (C₆H₅BNC(CH₃)3)3 
• 124225-20-3 1,3-di-tert.-butyl-4,4-dichloro-4-(η5-cyclopentadienyl)-2-phenyl-1-aza-2-bora-4-tantalacyclobutane 

Relevant academic research and scientific papers

Expansion and Contraction Reactions with BN-Four- and Six-Membered Rings

By the addition of iminoboranes RBNR' (1a-d) to the corresponding diazadiboretidines (RBNR')2 (2a-d), a ring expansion is observed, borazines (RBNR')3 (3a-d) being formed.The particular iminoborane iPr2BNiPr (1a) can be added to the diazadiboretidines 2c-g to give borazines B3N3R2R'2iPr2 with an unsymmetrical set of ligands.From PhBNtBu (1j) and (PhBNtBu)2 (2j), the Dewar borazine 3j' is formed, which crystallizes in the space group P21/c.The diazadiboretidines 2b-i, the borazines 3b-d,f, and the Dewar borazine 3e' are split into the corresponding iminoboranes RBNtBu at 500-600 deg C in the gas phase.The molten borazines 3b-d,f and Dewar borazines 3e',j' are contracted to the corresponding diazadiboretidines 2b-f,j at 160-320 deg C.

Novel Iminoboranes and their Reactions

The iminoboranes RBNR', 2a-f, are formed by the elimination of Me3SiHal from the corresponding aminoboranes 1a-f.Stabilization occurs either through cyclodimerisation (-->3b-d,f), cyclotrimerisation (-->4e), bicyclotrimerisation (-->5b) or cyclotetramerisation (-->6a).Trialkylboranes BX3 are added to give the diboryl amines RXBN(R')BX2, 7a-f.The Δ2-tetraazaborolines (R)B(R')N-N=N-N(X')>, 8a-f, are the (3-2)-cycloaddition products from 2a-f and azides X'N3.A CH-bond of cyclopentadiene adds to one BN bonds of 2f, giving a mixture of the corresponding 1,3- and 1,4-cyclopentadienyl boranes, 9f, 9'f. - Keywords: Iminoboranes, Cyclodimers, Cyclotrimers, Cyclotetramers