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4,4,5,5-tetramethyl-1,3,2λ2-dioxaborolane

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Origin: China

Cas No: 25015-63-8

Specification: 99%min

Min order Quantity: 1 /kg

Supply Ability: 50 mt/month

Lead time: 7 days for OEM, 3 days for ready goods

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Products Specification
Product Description

Quick Details
CAS No.:
25015-63-8
Other Names:
Pinacolborane
MF:
C6H13BO2
EINECS No.:
25015-63-8
Place of Origin:
Shandong, China
Type:
Pharmaceutical Intermediates
Purity:
99.0%min
Brand Name:
ENCH
Model Number:
ench-25015-63-8
Application:
Pharm Intermediates
Appearance:
Clear colorless liquid
Product name:
Pinacolborane
CAS:
25015-63-8
Color:
Clear colorless liquid
Molecular Weight:
127.98
Shelf life:
24 Months
Brand:
ENCH
Packing:
25kg/drum
Fp:
41 °F
Density:
0.882 g/mL at 25 °C(lit.)
Boiling point:
42-43 °C50 mm Hg(lit.)
Packaging&Delivery
Packaging Details
25G,1KG,25KG/drum or as your demend.
Port
China main ports

Property

CAS No.: 25015-63-8 Formula: C6H13BO2 Molecular Weight: 127.97700

Description

It is used for synthesis of unsymmetrical biaryls via aromatic C-H borylation-cross-coupling sequence.

Basic Info

Chemical Name	4,4,5,5-tetramethyl-1,3,2λ<sup>2</sup>-dioxaborolane
Synonyms	HBPin,PinBH; catecholborane; 4,4,5,5-TetraMethyl-1,3,2-dioxaborolane; Pinacolborane; PinB-TE;
CAS No.	25015-63-8
Molecular Formula	C6H13BO2
Molecular Weight	127.97700
PSA	18.46000
LogP	0.85690

Properties

Appearance & Physical State	Clear colorless liquid
Density	0.882
Boiling Point	42-43ºC (50 mmHg)
Flash Point	5ºC
Refractive Index	1.394-1.396
Storage Condition	Keep Cold
Vapor Pressure	28.6mmHg at 25°C

Safety Info

Hazard Class	4.3
Safety Statements	S16-S26-S37/39-S43-S8
HS Code	2934999090
Packing Group	II
WGK Germany	3
RIDADR	UN 3398
Risk Statements	R11; R15; R36/37/38
Hazard Codes	F; Xi
Symbol	GHS02, GHS07, GHS08
Signal Word	Danger
Caution Statement	P210; P231 + P232; P280; P370 + P378; P402 + P404; P403 + P235
Hazard Declaration	H225; H261; H302; H319; H335; H351
Supplemental Hazard Statements	May form explosive peroxides.

Synthesis Route

m-Xylene+Bis(pinacolato)diboron→4,4,5,5-tetramethyl-1,3,2λ2-dioxaborolane+2-(3,5-Dimethylphenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane
tert-Butyl ethyl ether+Bis(pinacolato)diboron→4,4,5,5-tetramethyl-1,3,2λ2-dioxaborolane+2-(2-tert-butoxyethyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane
2,3-dimethylbutane-2,3-diol→4,4,5,5-tetramethyl-1,3,2λ2-dioxaborolane

Precursor

Benzene
2,3-dimethylbutane-2,3-diol
pentane
Bis(pinacolato)diboron

Downstream Product

5-Fluoro-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-indol e
2-(2,3-dihydrofuran-4-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane
2-(4-Chlorothiophen-2-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane
2-(4-chloro-3,5-dimethylphenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane

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