747-80-8

Basic information

• Product Name: 2,4,6-trimethyl-1,3,5-triphenylborazine
• Synonyms: Borazine, 2,4,6-trimethyl-1,3,5-triphenyl-
• CAS NO: 747-80-8
• Molecular Formula: C₂₁H₂₄B₃N₃
• Molecular Weight: 350.8684
• Mol File: 747-80-8.mol
• Article Data: 2

Chemical Properties

• Boiling Point: 426.5°C at 760 mmHg
• Flash Point: 211.7°C
• Density: 1.07g/cm³
• Vapor Pressure: 1.76E-07mmHg at 25°C
• Refractive Index: 1.592
• CAS DataBase Reference: 2,4,6-trimethyl-1,3,5-triphenylborazine(CAS DataBase Reference)
• NIST Chemistry Reference: 2,4,6-trimethyl-1,3,5-triphenylborazine(747-80-8)
• EPA Substance Registry System: 2,4,6-trimethyl-1,3,5-triphenylborazine(747-80-8)

Safety Data

• Hazardous Substances Data: 747-80-8(Hazardous Substances Data)

Usage

Classification

Organic compound, borazine family

Structure

Six-membered ring of alternating boron and nitrogen atoms

Appearance

Crystalline solid, yellow to orange color

Usage

Precursor in the synthesis of boron-containing materials (e.g. boron nitride, boron-carbide ceramics)

Properties

High thermal stability, resistance to oxidation

Applications

Flame retardants, polymer additives, precursor for boron-containing polymers

Potential uses

Organic electronics, optoelectronics

Upstream product

• 917-64-6 methyl magnesium iodide 
• 976-29-4 1,3,5-triphenyl-borazine 
• 981-87-3 B-trichloro-N-triphenylborazine 
• 75-16-1 methylmagnesium bromide 
• 593-90-8 trimethylborane 
• 62-53-3 aniline 
• 1960-46-9 2,4,6-trifluoro-1,3,5-triphenyl-borazine 
• 186581-53-3 diazomethane 
• 142-04-1 aniline hydrochloride 
• 95347-55-0 trans-1,2-diphenyldiborane⁽⁶⁾ 
• 19125-66-7 bis(monomethylamino)phenylborane 
• 17933-16-3 dibromomethylborane 
• 17729-33-8 N,N-bis(trimethylstannyl)phenylamine 

Downstream Products

• 156955-53-2 (η6-B,B',B''-trimethyl-N,N',N''-triphenylborazine)tricarbonylchromium 

Relevant articles and documents

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1H and 13C NMR studies of η6-benzo-bonded (boron-nitrogen heteroarene)tricarbonylchromium complexes and related η6-phenyl-bonded (B, B', B''-trimethyl-N, N', N''-triarylborazine)-tricarbonylchromium complexes: crystallographic structure of a boron-nitrogen heteroarene

2,4-dimethyl-3-phenyl--7-chloro-8-methyl-2,4-dibora-1,3-diazaronaphthalene (C16H18B2N2Cl2) crystallizes in the monoclinic system: P2/a; a=8.149(3) Angstroem, b=13.379(3) Angstroem and c=15.193(3) Angstroem; β=91.03(2)o; Z=4; R=0.043; Rw=0.041.Reaction with gives exclusively the compounds with Cr(CO)3 η6-bonded to the benzo part of the molecule.This derivative is a 1:1 mixture of atropisomers which were partially separated and whose configurations could be deduced by means of solvent effects in nuclear magnetic resonance (NMR) spectroscopy.Similar results were obtained with 2,4-dimethyl-3-phenyl--6-chloro-8-methyl-2,4-dibora-1,3-diazaronaphthalene and although the separation of isomers failed.Additionally, two closely related η6-bonded isomers originating from the above ligands were identified in which the chlorine atom was replaced by a hydrogen atom.All these compounds were thoroughly characterized by high resolution 1H and 13C one-dimensional and 1H-1H nuclear Overhauser spectroscopy (NOESY) and correlated two-dimensional NMR spectroscopy (COSY).Further, the reaction of with B,B',B''-trimethyl-N,N',N''-triarylborazine, the phenyl bearing a para substituent (H, F or Me), was shown by 1H and 13C NMR spectroscopy to yield a compound with one phenyl group η6 bonded to Cr(CO)3.Key words: Chromium; Boron; Nuclear magnetic resonance