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655856

4,4,5,5-Tetramethyl-1,3,2-dioxaborolane

Name: 4,4,5,5-Tetramethyl-1,3,2-dioxaborolane
Brand: ALDRICH

97%

Synonym(s):

HBpin, Pinacolborane

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About This Item

Empirical Formula (Hill Notation):

C₆H₁₃BO₂

CAS Number:

25015-63-8

Molecular Weight:

127.98

NACRES:

NA.22

PubChem Substance ID:

24884127

UNSPSC Code:

12352103

MDL number:

MFCD00674030

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Properties

Quality Segment

100

assay

97%

refractive index

n20/D 1.396 (lit.)

bp

42-43 °C/50 mmHg (lit.)

density

0.882 g/mL at 25 °C (lit.)

storage temp.

2-8°C

SMILES string

CC1(C)OBOC1(C)C

InChI

1S/C6H13BO2/c1-5(2)6(3,4)9-7-8-5/h7H,1-4H3

InChI key

UCFSYHMCKWNKAH-UHFFFAOYSA-N

Description

Application

4,4,5,5-Tetramethyl-1,3,2-dioxaborolane may be used for:

Borylation at the benzylic C-H bond of alkylbenzenes in the presence of a palladium catalyst to form pinacol benzyl boronate.
Hydroboration of alkyl or aryl alkynes and alkenes in the presence of transition metal catalysts.
Coupling with aryl iodides in the presence of a copper catalyst to form aryl boronates.
Asymmetric hydroboration of 1,3-enynes to form chiral allenyl boronates.

pictograms

GHS02

signalword

Danger

hcodes

H225,H261

pcodes

P210 - P231 + P232 - P233 - P280 - P302 + P335 + P334 - P370 + P378

Storage Class

4.3 - Hazardous materials which set free flammable gases upon contact with water

wgk

WGK 3

flash_point_f

41.0 °F - closed cup

flash_point_c

5 °C - closed cup

ppe

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

Hazard Classifications

Flam. Liq. 2 - Water-react. 2

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