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Merck
CN

165336

Methylboronic acid

97%

Synonym(s):

Methaneboronic acid

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About This Item

Linear Formula:
CH3B(OH)2
CAS Number:
Molecular Weight:
59.86
UNSPSC Code:
12352103
NACRES:
NA.22
PubChem Substance ID:
MDL number:
Beilstein/REAXYS Number:
1731087
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InChI

1S/CH5BO2/c1-2(3)4/h3-4H,1H3

SMILES string

CB(O)O

InChI key

KTMKRRPZPWUYKK-UHFFFAOYSA-N

assay

97%

form

solid

mp

91-94 °C (lit.)

Quality Level

Application

Methylboronic acid can be used as a reagent:
  • In the palladium-catalyzed Stille and Suzuki-Miyaura cross-couplings.
  • In the microwave-heated heterogeneous palladium (Pd)-catalytized reactions.
  • In ruthenium (Ru)-catalyzed silylation reactions
  • To prepare bis(aminotropone) titanium (Ti) catalysts for ethylene polymerizations.
  • In the enantioselective asymmetric bromoaminocyclization and bromoaminocyclization using amino-thiocarbamate catalysts.
  • To prepare common building blocks for pharmaceuticals and agrochemicals.
  • To prepare chrysin analogs by Suzuki-Miyaura coupling reactions.
  • To prepare casein kinase I inhibitors.
  • In the divergent C-H functionalizations directed by sulfonamide pharmacophores in drug discovery.
  • In the synthesis of unsymmetrical monosulfides from disulfides via copper-catalyzed coupling with boronic acids.
  • In a palladium-catalyzed coupling with enol tosylates.
  • For derivatizing many carbohydrates and biologically active compounds for GLC analysis.

pictograms

Exclamation mark

signalword

Warning

Hazard Classifications

Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3

target_organs

Respiratory system

Storage Class

11 - Combustible Solids

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

dust mask type N95 (US), Eyeshields, Gloves


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Ling Zhou et al.
Journal of the American Chemical Society, 133(24), 9164-9167 (2011-05-05)
A facile and efficient enantioselective bromoaminocyclization of unsaturated sulfonamides has been developed using an amino-thiocarbamate catalyst. A range of enantioenriched pyrrolidines were prepared with up to 99% yield and 99% ee. The corresponding lactams could be obtained through oxidation of
Hui-Xiong Dai et al.
Journal of the American Chemical Society, 133(18), 7222-7228 (2011-04-15)
Modern drug discovery is contingent on identifying lead compounds and rapidly synthesizing analogues. The use of a common pharmacophore to direct multiple and divergent C-H functionalizations of lead compounds is a particularly attractive approach. Herein, we demonstrate the viability of
A comparative study of ethylene polymerization by bis(aminotropone) Ti catalysts
Goldani, M. T.; et al.
Polym. Bull., 68, 755-773 (2012)
Ben W Glasspoole et al.
Chemical communications (Cambridge, England), 48(9), 1230-1232 (2011-12-20)
Palladium-catalyzed cross-coupling reactions of secondary allylic boronic esters with iodoarenes were demonstrated under the conditions previously described for the coupling of benzylic substrates. The regioselectivity of the process was largely dictated by the pattern of olefin substitution.
Ling Zhou et al.
Journal of the American Chemical Society, 132(44), 15474-15476 (2010-10-16)
A novel amino-thiocarbamate-catalyzed bromolactonization of unsaturated carboxylic acids has been developed. The scope of the reaction is evidenced by 22 examples of γ-lactones with up to 99% yield and 93% ee. The protocol was applied in the enantioselective synthesis of

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