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165336

Sigma-Aldrich

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
Beilstein/REAXYS Number:
1731087
MDL number:
UNSPSC Code:
12352103
PubChem Substance ID:
NACRES:
NA.22

assay

97%

form

solid

mp

91-94 °C (lit.)

SMILES string

CB(O)O

InChI

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

InChI key

KTMKRRPZPWUYKK-UHFFFAOYSA-N

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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

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

dust mask type N95 (US), Eyeshields, Gloves


Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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