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Sigma-Aldrich

Phenylboronic acid pinacol ester

97%

Synonym(s):

(Pinacolboryl)benzene, 4,4,5,5-Tetramethyl-2-phenyl-1,3,2-dioxaborolane, Pinacol phenylboronate, cyclic tetramethylethylene ester benzeneboronic acid

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About This Item

Empirical Formula (Hill Notation):
C12H17BO2
CAS Number:
24388-23-6
Molecular Weight:
204.07
MDL number:
MFCD00966985
UNSPSC Code:
12352103
PubChem Substance ID:
24883506
NACRES:
NA.22

Quality Level

100

Assay

97%

form

solid

mp

27-31 °C (lit.)

SMILES string

CC1(C)OB(OC1(C)C)c2ccccc2

InChI

1S/C12H17BO2/c1-11(2)12(3,4)15-13(14-11)10-8-6-5-7-9-10/h5-9H,1-4H3

InChI key

KKLCYBZPQDOFQK-UHFFFAOYSA-N

Related Categories

General description

Phenylboronic acid, pinacol ester, also known as boronate ester, is generally used in metal-catalyzed C-C bond formation reactions like Suzuki–Miyaura reaction.

Application

Phenylboronic acid pinacol ester can be used:
  • To prepare sulfinamide derivatives by reacting with diethylaminosulfur trifluoride (DAST) and potassium phenyltrifluoroborate.
  • As a substrate in the study of Suzuki–Miyaura coupling of various aryl iodides over SiliaCat Pd(0).

Pictograms

Exclamation mark
GHS07

Signal Word

Warning

Hazard Statements

H302,H315,H319,H335

Hazard Classifications

Acute Tox. 4 Oral - Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3

Target Organs

Respiratory system

WGK

WGK 3

Flash Point(F)

closed cup

Flash Point(C)

closed cup

Personal Protective Equipment

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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Heterogeneous Pd/C-catalyzed ligand-free Suzuki-Miyaura coupling reaction using aryl boronic esters
Kitamura Y, et al.
Tetrahedron, 63(43), 10596-10602 (2007)
Metal-Free Cross-Coupling of Arylboronic Acids and Derivatives with DAST-Type Reagents for Direct Access to Diverse Aromatic Sulfinamides and Sulfonamides
Wang Q, et al.
Angewandte Chemie (International Edition in English), 55(36), 10811-10815 (2016)
Enhanced heterogeneously catalyzed Suzuki-Miyaura reaction over SiliaCat Pd (0)
Pandarus V, et al.
Tetrahedron Letters, 54(35), 4712-4716 (2013)

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