903965
Trimethylboroxine
50% THF solution
Synonym(s):
2,4,6-Trimethyl-1,3,5,2,4,6-trioxatriborinane, 2,4,6-Trimethylboroxine, Methaneboronic anhydride, Trimethyl-1,3,5,2,4,6-trioxatriborinane
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About This Item
Empirical Formula (Hill Notation):
C3H9B3O3
CAS Number:
Molecular Weight:
125.53
UNSPSC Code:
12352103
NACRES:
NA.22
MDL number:
form
liquid
refractive index
n/D 1.3880
density
0.89962 g/mL
SMILES string
B1(OB(OB(O1)C)C)C
InChI
1S/C3H9B3O3/c1-4-7-5(2)9-6(3)8-4/h1-3H3
InChI key
GBBSAMQTQCPOBF-UHFFFAOYSA-N
Application
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.
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signalword
Danger
hcodes
Hazard Classifications
Carc. 2 - Flam. Liq. 2 - Skin Corr. 1B - STOT SE 3
target_organs
Respiratory system
supp_hazards
Storage Class
3 - Flammable liquids
wgk
WGK 3
flash_point_f
-5.8 °F
flash_point_c
-21 °C
Regulatory Information
危险化学品
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Oxazaborolidines as functional monomers: ketone reduction using polymer-supported Corey, Bakshi, and Shibata catalysts.
Price MD, et al.
The Journal of Organic Chemistry, 67(23), 8086-8089 (2002)
Profound Methyl Effects in Drug Discovery and a Call for New C−H Methylation Reactions.
Schoenherr H and Cernak T
Angewandte Chemie (International ed. in English), 52(47), 12256-12267 (2013)
Practical methylation of aryl halides by Suzuki-Miyaura coupling.
Gray M, et al.
Tetrahedron Letters, 41(32), 6237-6240 (2000)