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Merck
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633348

Sigma-Aldrich

Vinylboronic acid pinacol ester

contains phenothiazine as stabilizer, 95%

Sinónimos:

2-Ethenyl-4,4,5,5-tetramethyl-1,3,2-dioxaborolane, 2-Vinyl-4,4,5,5-tetramethyl-1,3,2-dioxaoborolane, 4,4,5,5-Tetramethyl-2-vinyl-1,3,2-dioxaborolane

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About This Item

Fórmula empírica (notación de Hill):
C8H15BO2
Número de CAS:
75927-49-0
Peso molecular:
154.01
MDL number:
MFCD00192492
UNSPSC Code:
12352103
PubChem Substance ID:
24882546
NACRES:
NA.22

assay

95%

contains

phenothiazine as stabilizer

refractive index

n20/D 1.4300 (lit.)

density

0.908 g/mL at 25 °C (lit.)

storage temp.

−20°C

SMILES string

CC1(C)OB(OC1(C)C)C=C

InChI

1S/C8H15BO2/c1-6-9-10-7(2,3)8(4,5)11-9/h6H,1H2,2-5H3

InChI key

DPGSPRJLAZGUBQ-UHFFFAOYSA-N

Application

Employed in a "double" Heck-Mizoroki arylation leading to β,β-diarylated vinyl boronates which react with an additional aryl halide to form Π-extended systems. This approach was used to prepare conjugated dendrimers. Also used to prepare γ-carbonyl vinyl boronates via a light-induced radical addition of xanthates.
Reagent used for
  • Suzuki-Miyaura coupling reactions
  • Mizoroki-Heck reactions (cascade reaction)
  • Intramolecular Nozaki-Hiyama-Kishi reactions
  • Stereoselective Cu-catalyzed γ-selective and stereospecific coupling
  • Control of stereoselectivity and mechanistic portrait on intramolecular (4+1)-cycloaddition of dialkoxycarbenes
  • Regio- and stereoselective synthesis of trisubstituted alkenes via gold(I)-catalyzed hydrophosphoryloxylation of haloalkynes followed by Pd-catalyzed consecutive cross-coupling reactions
  • Asymmetric Birch reductive alkylation

Reagent used in Preparation of
  • Molecular tubes for lipid sensing
  • Enzymatic inhibitors, antibiotics, receptor analogs, and other biologically significant compounds (including total syntheses)

signalword

Warning

Hazard Classifications

Aquatic Chronic 2 - Flam. Liq. 3 - Skin Sens. 1

Storage Class

3 - Flammable liquids

wgk_germany

WGK 3

flash_point_f

93.2 °F

flash_point_c

34 °C

ppe

Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter

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