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Trimethylboroxine

Trimethylboroxine structure

CAS No.: 823-96-1

Chemical Name:: Trimethylboroxine

Synonyms: 2,4,6-triMethyl-1,3,5,2,4,6-trioxatriborinane;2,4,6-Trimethylboroxin;2,4,6-Tr;METHYLBOROXIN;TRIMETHYLBOROXINE;trimethylboroxin,;TRIMEETHYLBOROXINE;Methylboric anhydride;Trimethylcyclotriborane;Methaneboronic anhydride

CBNumber:: CB0104810

Molecular Formula:: C3H9B3O3

Molecular Weight:: 125.53

MDL Number:: MFCD00013354

MOL File:: 823-96-1.mol

MSDS File:: SDS

Last updated:2023-12-26 17:07:23

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Trimethylboroxine Properties

Melting point	−38 °C(lit.)
Boiling point	78-80 °C(lit.)
Density	0.898 g/mL at 25 °C(lit.)
refractive index	n20/D 1.362(lit.)
Flash point	16 °F
storage temp.	Flammables area
solubility	Chloroform (Sparingly), Dichloromethane (Slightly), THF (Soluble)
form	Solution
color	Colorless to yellow
Water Solubility	Not miscible in water.
Sensitive	Moisture Sensitive & Hygroscopic
BRN	1757008
Exposure limits	ACGIH: TWA 50 ppm; STEL 100 ppm (Skin) OSHA: TWA 200 ppm(590 mg/m3) NIOSH: IDLH 2000 ppm; TWA 200 ppm(590 mg/m3); STEL 250 ppm(735 mg/m3)
InChIKey	GBBSAMQTQCPOBF-UHFFFAOYSA-N
CAS DataBase Reference	823-96-1(CAS DataBase Reference)

SAFETY

Risk and Safety Statements

Symbol(GHS)

GHS02,GHS05,GHS07,GHS08

Signal word

Danger

Hazard statements

H225-H314-H335-H351

Precautionary statements

P201-P210-P233-P261-P280-P370+P378

Hazard Codes

F,C,Xi

Risk Statements

11-34-41-37/38-19

Safety Statements

9-16-26-33-36/37/39-45-46-37/39-3

RIDADR

UN 2924 3/PG 2

WGK Germany

2-10-21

TSCA

Yes

HazardClass

3.1

PackingGroup

HS Code

29319090

NFPA 704

	3
2		0

Trimethylboroxine price More Price(15)

Manufacturer	Product number	Product description	CAS number	Packaging	Price	Updated	Buy
Sigma-Aldrich	903965	Trimethylboroxine 50% THF solution	823-96-1	5ML	$59.2	2024-03-01	Buy
Sigma-Aldrich	903965	Trimethylboroxine 50% THF solution	823-96-1	25ML	$231	2024-03-01	Buy
Sigma-Aldrich	903965	Trimethylboroxine 50% THF solution	823-96-1	250ML	$1290	2024-03-01	Buy
Sigma-Aldrich	323136	Trimethylboroxine 99%	823-96-1	1g	$20.8	2024-03-01	Buy
Sigma-Aldrich	323136	Trimethylboroxine 99%	823-96-1	5g	$131	2024-03-01	Buy

Product number	Packaging	Price	Buy
903965	5ML	$59.2	Buy
903965	25ML	$231	Buy
903965	250ML	$1290	Buy
323136	1g	$20.8	Buy
323136	5g	$131	Buy

Trimethylboroxine Chemical Properties,Uses,Production

Chemical Properties

colorless to yellow solution

Uses

Trimethylboroxine (TMB) is a cyclic anhydride of methyl-boronic acid. It can be used as a:

Methylating agent for the methylation of various aromatic halides and C(sp³)?H bonds using palladium catalyst.
Reagent in the preparation of polymer supported CBS (Corey, Bakshi, and Shibata) catalysts.

Uses

Trimethylboroxine (TMB) is a cyclic anhydride of methyl-boronic acid. It can be been used:

As a derivatizing agent for gas chromatographic/mass spectrometric analysis.
In the preparation of methylaluminoxane (MAO) which is used in the polymerization of olefins.
As an electrolyte additive to enhance the interface stability of electrode/electrolyte.
In methylation of aryl halides by palladium-catalyzed Suzuki-Miyaura coupling reaction.
In the preparation of CBS (Corey, Bakshi and Shibata) catalysts for asymmetric reductions of ketones to alcohols.

Uses

Trimethylboroxine is used as a derivatizing agent for GLC analysis. It is used in a diverse array of areas, including as a polymerization additive. It is also used in the preparation of CBS catalysts for asymmetric reductions.

Application

Trimethylboroxine (TMB) is a cyclic anhydride of methyl-boronic acid. It can be been used:
As a derivatizing agent for gas chromatographic/mass spectrometric analysis.
In the preparation of methylaluminoxane (MAO) which is used in the polymerization of olefins.
As an electrolyte additive to enhance the interface stability of electrode/electrolyte.
In methylation of aryl halides by palladium-catalyzed Suzuki-Miyaura coupling reaction.
In the preparation of CBS (Corey, Bakshi and Shibata) catalysts for asymmetric reductions of ketones to alcohols.

Purification Methods

Possible impurity is methylboronic acid. If present, then add a few drops of conc H2SO4 and distil it immediately, then fractionate it through an efficient column. [McCusker et al. J Am Chem Soc 79 5179 1957, IR: Goubeau & Keller Z Anorg Allgem Chem 272 303 1953, Beilstein 4 IV 4378.]

Trimethylboroxine Preparation Products And Raw materials

Raw materials

Preparation Products

(S)-3,3-Diphenyl-1-methylpyrrolidino[1,2-c]-1,3,2-oxazaborole 2-Methylimidazole 2-(2-Methylpropyl)pyridine 4-CHLORO-6-METHYL-NICOTINIC ACID METHYL ESTER 4-Hydroxy-1-methyl-7-phenoxy-3-isoquinolinecarboxylic acid methyl ester

2-N-PROPYLPYRIDINE 2-Amino-4,6-dimethylpyrimidine 2,5-Dimethyl-3-nitropyridine

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Trimethylboroxine Suppliers

Global( 201)Suppliers

Supplier	Tel	Email	Country	ProdList	Advantage
Hebei Yanxi Chemical Co., Ltd.	+8617531190177	peter@yan-xi.com	China	5993	58
Henan Fengda Chemical Co., Ltd	+86-371-86557731 +86-13613820652	info@fdachem.com	China	7786	58
Capot Chemical Co.,Ltd.	571-85586718 +8613336195806	sales@capotchem.com	China	29797	60
Henan Tianfu Chemical Co.,Ltd.	+86-0371-55170693 +86-19937530512	info@tianfuchem.com	China	21691	55
Nanjing ChemLin Chemical Industry Co., Ltd.	025-83697070	product@chemlin.com.cn	CHINA	3012	60
Zjartschem	+86-571-8723 8903 jocelynpan@zjarts.com	jocelynpan@zjarts.com	CHINA	993	58
career henan chemical co	+86-0371-86658258	sales@coreychem.com	China	29914	58
Hubei xin bonus chemical co. LTD	86-13657291602	linda@hubeijusheng.com	CHINA	22968	58
Chongqing Chemdad Co., Ltd	+86-023-61398051 +8613650506873	sales@chemdad.com	China	39916	58
CONIER CHEM AND PHARMA LIMITED	+8618523575427	sales@conier.com	China	47465	58

Supplier	Advantage
Hebei Yanxi Chemical Co., Ltd.	58
Henan Fengda Chemical Co., Ltd	58
Capot Chemical Co.,Ltd.	60
Henan Tianfu Chemical Co.,Ltd.	55
Nanjing ChemLin Chemical Industry Co., Ltd.	60
Zjartschem	58
career henan chemical co	58
Hubei xin bonus chemical co. LTD	58
Chongqing Chemdad Co., Ltd	58
CONIER CHEM AND PHARMA LIMITED	58

View Lastest Price from Trimethylboroxine manufacturers

Update time	Product	Price	Min. Order	Purity	Supply Ability	Manufacturer
2023-12-26	Trimethylboroxine 823-96-1	US $100.00-1.00 / KG	1KG	99%	g-kg-tons, free sample is available	Henan Fengda Chemical Co., Ltd
2023-11-27	Trimethylboroxine 823-96-1	US $0.00 / kg	1kg	0.99	10 tons	Hebei Yanxi Chemical Co., Ltd.
2023-09-06	Trimethylboroxine 823-96-1	US $30.00-10.00 / KG	50KG	99%	500000kg	Hebei Guanlang Biotechnology Co., Ltd.

Trimethylboroxine
823-96-1
US $100.00-1.00 / KG
99%
Henan Fengda Chemical Co., Ltd

Trimethylboroxine
823-96-1
US $0.00 / kg
0.99
Hebei Yanxi Chemical Co., Ltd.

Trimethylboroxine
823-96-1
US $30.00-10.00 / KG
99%
Hebei Guanlang Biotechnology Co., Ltd.

Trimethylboroxine Spectrum

Trimethylboroxine(823-96-1)¹HNMR Trimethylboroxine(823-96-1)Raman Trimethylboroxine(823-96-1)IR

823-96-1(Trimethylboroxine)Related Search:

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2,4,6-Trimethyl-cyclotriboroxane Boroxin, 2,4,6-trimethyl- 2,4,6-Trimethyl-1,3,5-trioxa-2,4,6-triboracyclohexane Methaneboronic anhydride Methylboric anhydride Trimethylboroxine, 3.5M (50 wt.%) solution in THF Trimethylboroxine, 3.5M (50 wt.%) solution in THF, AcroSeal 2,5,6-triMethyl-6H-1,3-oxaborinine TriMethylboroxine, 3.5M (50 wt.%) solution in THF 25ML Trimethylboroxin, in tetrahydrofuran Trimethylboroxine, 50 wt% solution in THF TriMethylboroxine, 50% w/w soln. in THF TriMethylboroxine, 3.5 M solution in THF METHYLBOROXIN TRIMETHYLBOROXINE trimethylboroxin, trimethylboroxin,mbx,intetrahydrofuran Trimethylcyclotriborane 2,4,6-Tr Trimethylboroxine (ca. 50% in Tetrahydrofuran) Trimethylboroxine solution Trimethylboroxine, 50wt.% in THF TRIMEETHYLBOROXINE Trimethylboroxine, for synthesis, 3.5 M solution in THF TRIMETHYLBOROXINE (W/W 50% SOLUTION IN THF) Trimethylboroxine ISO 9001：2015 REACH Trimethylboroxine, 3.5M (50 wt.%) solution in THF, AcroSeal&trade 2,4,6-Trimethylboroxin 2,4,6-triMethyl-1,3,5,2,4,6-trioxatriborinane 2,4,6-Trimethylboroxin trimethylboroxin Trimethylcyclotriboroxane Trimethylboroxine, 50% w/w soln. in TH 823-96-1 C3H9B3O3 Others Organometallic Reagents Boronic Acids and Derivatives Alkylation API intermediates Boronic Acids and Derivatives Organometallic Reagents Others