Home > Heterocyclic Compounds> 4,4,5,5-tetramethyl-2-thiophen-2-yl-1,3,2-dioxaborolane

4,4,5,5-tetramethyl-2-thiophen-2-yl-1,3,2-dioxaborolane

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Origin: China

Cas No: 193978-23-3

Specification: 99%min

Min order Quantity: 1 /kg

Supply Ability: 80 mt/month

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

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CAS No.: 193978-23-3 Formula: C10H15BO2S Molecular Weight: 210.10100

Basic Info

Chemical Name	4,4,5,5-tetramethyl-2-thiophen-2-yl-1,3,2-dioxaborolane
Synonyms	Thiophene-2-boronic acid,pinacol ester; 2-(thiophene-2-yl)-4,4,5,5-tetramethyl-[1,3,2]dioxaborolane; 4,4,5,5-Tetramethyl-2-(2-thienyl)-1,3,2-dioxaborolane; Thiophene-2-Boronic Acid Pinacol Ester; 2-(thiophen-2-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane; 4,4,5,5-Tetramethyl-2-(thien-2-yl)-1,3,2-dioxaborolane; 2-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)thiophene; 4,4,5,5-Tetramethyl-2-(thiophen-2-yl)-1,3,2-dioxaborolane; 2-thiopheneboronic acid pinacol ester; 2-(4,4,5,5-tetramethyl-1,3,2,-dioxaborolan-2-yl)-thiophene; 4,4,5,5-tetramethyl-2-(thiophene-2-yl)-1,3,2-dioxaborolane; 2-thiophene boronic pinacol ester;
CAS No.	193978-23-3
Molecular Formula	C10H15BO2S
Molecular Weight	210.10100
PSA	46.70000
LogP	2.04730

Properties

Density	1.075g/cm3
Boiling Point	286.547ºC at 760 mmHg
Melting Point	68-70ºC
Flash Point	127.099ºC
Refractive Index	1.501
Vapor Pressure	0.005mmHg at 25°C

Safety Info

Safety Statements	S26-S36-S37-S39
Risk Statements	R36/37/38

Synthesis Route

Thiophene(SIV)+Bis(pinacolato)diboron→4,4,5,5-tetramethyl-2-thiophen-2-yl-1,3,2-dioxaborolane+4,4,5,5-tetramethyl-2-[5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)thiophen-2-yl]-1,3,2-dioxaborolane
2-Bromothiophene+2-Isopropoxy-4,4,5,5-tetramethyl-1,3,2-dioxaborolane→4,4,5,5-tetramethyl-2-thiophen-2-yl-1,3,2-dioxaborolane
Thiophene(SIV)+2,3-dimethylbutane-2,3-diol→4,4,5,5-tetramethyl-2-thiophen-2-yl-1,3,2-dioxaborolane

Precursor

2,3-dimethylbutane-2,3-diol
2-Isopropoxy-4,4,5,5-tetramethyl-1,3,2-dioxaborolane
Thiophene(SIV)
2-Bromothiophene

Downstream Product

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2,2'-BITHIOPHENE-5-CARBOXALDEHYDE

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