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2,2'-Bithiophene-5-boronic Acid Pinacol Ester

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Origin: China

Cas No: 479719-88-5

Specification: 99%min

Min order Quantity: 1 /kg

Supply Ability: 100 mt/month

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

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CAS No.: 479719-88-5 Formula: C14H17BO2S2 Molecular Weight: 292.22500

Basic Info

Chemical Name	2,2'-Bithiophene-5-boronic Acid Pinacol Ester
Synonyms	2-([2,2'-Bithiophen]-5-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane; 5-(4,4,5,5-TetraMethyl-1,3,2-dioxaborolan-2-yl)-2,2'-bithiophene; 2-(2,2'-Bithiophen-5-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane; 4,4,5,5-tetramethyl-2-(5-thiophen-2-ylthiophen-2-yl)-1,3,2-dioxaborolane;
CAS No.	479719-88-5
Molecular Formula	C14H17BO2S2
Molecular Weight	292.22500
PSA	74.94000
LogP	3.77580

Properties

Density	1.19g/cm3
Boiling Point	406.1ºC at 760 mmHg
Melting Point	35.5-38.0ºC
Flash Point	199.4ºC
Refractive Index	n20/D 1.5900(lit.)

Safety Info

Safety Statements	S22; S24/25
HS Code	2934999090
WGK Germany	3

Synthesis Route

2-Isopropoxy-4,4,5,5-tetramethyl-1,3,2-dioxaborolane+2,2'-bithiophene→2,2'-Bithiophene-5-boronic Acid Pinacol Ester
2,3-dimethylbutane-2,3-diol+2,2'-bithiophene→2,2'-Bithiophene-5-boronic Acid Pinacol Ester
2-Isopropoxy-4,4,5,5-tetramethyl-1,3,2-dioxaborolane+2-bromo-5-thiophen-2-ylthiophene→2,2'-Bithiophene-5-boronic Acid Pinacol Ester

Precursor

2,3-dimethylbutane-2,3-diol
2-Iodothiophene
2-Isopropoxy-4,4,5,5-tetramethyl-1,3,2-dioxaborolane
2,2'-bithiophene

Downstream Product

5-octyl-(2,2',5',2''-terthiophene)
2,2':5',2''-Terthiophene-5-carboxaldehyde
2,2':5',2''-terthiophene
2-thiophen-2-yl-5-(5-thiophen-2-ylthiophen-2-yl)thiophene

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