5-Methylthiophene-2-boronic acid pinacol ester

Modify Date: 2025-08-24 17:20:48

5-Methylthiophene-2-boronic acid pinacol ester Structure
5-Methylthiophene-2-boronic acid pinacol ester structure
Common Name 5-Methylthiophene-2-boronic acid pinacol ester
CAS Number 476004-80-5 Molecular Weight 224.12700
Density 0.937 Boiling Point 308.2ºC at 760 mmHg
Molecular Formula C11H17BO2S Melting Point N/A
MSDS N/A Flash Point 105ºC

 Names

Name 4,4,5,5-tetramethyl-2-(5-methylthiophen-2-yl)-1,3,2-dioxaborolane
Synonym More Synonyms

 Chemical & Physical Properties

Density 0.937
Boiling Point 308.2ºC at 760 mmHg
Molecular Formula C11H17BO2S
Molecular Weight 224.12700
Flash Point 105ºC
Exact Mass 224.10400
PSA 46.70000
LogP 2.35570
Index of Refraction 1.5

 Safety Information

Hazard Codes Xi
Risk Phrases 38
Safety Phrases S24/25

 Synthetic Route

~88%

5-Methylthiophene-2-boronic acid pinacol ester Structure

5-Methylthiophe...

CAS#:476004-80-5

Literature: Robbins, Daniel W.; Hartwig, John F. Organic Letters, 2012 , vol. 14, # 16 p. 4266 - 4269

~96%

5-Methylthiophene-2-boronic acid pinacol ester Structure

5-Methylthiophe...

CAS#:476004-80-5

Literature: Wakioka, Masayuki; Nakamura, Yuki; Hihara, Yoshihiro; Ozawa, Fumiyuki; Sakaki, Shigeyoshi Organometallics, 2013 , vol. 32, # 15 p. 4423 - 4430

~76%

5-Methylthiophene-2-boronic acid pinacol ester Structure

5-Methylthiophe...

CAS#:476004-80-5

Literature: Robbins, Daniel W.; Hartwig, John F. Organic Letters, 2012 , vol. 14, # 16 p. 4266 - 4269

~89%

5-Methylthiophene-2-boronic acid pinacol ester Structure

5-Methylthiophe...

CAS#:476004-80-5

Literature: Bochkov, Andrei Y.; Krayushkin, Mikhail M.; Yarovenko, Vladimir N.; Barachevsky, Valery A.; Beletskaya, Irina P.; Traven, Valery F. Journal of Heterocyclic Chemistry, 2013 , vol. 50, # 4 p. 891 - 898

~%

5-Methylthiophene-2-boronic acid pinacol ester Structure

5-Methylthiophe...

CAS#:476004-80-5

Literature: Vanchura II, Britt A.; Preshlock, Sean M.; Roosen, Philipp C.; Kallepalli, Venkata A.; Staples, Richard J.; Maleczka Jr., Robert E.; Singleton, Daniel A.; Smith III, Milton R. Chemical Communications, 2010 , vol. 46, # 41 p. 7724 - 7726

 Synonyms

4,4,5,5-tetramethyl-2-(5-methylthiophen-2-yl)-1,3,2-dioxoborolane
OR2393
4,4,5,5-tetramethyl-2-(5-methylthiophen-2-yl)-[1,3,2]dioxaborolane
2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-5-methylthiophene
5-Methylthiophene-2-boronic acid pinacol ester
5-(2-Methylthiophene)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane
5-(2-methylthiophene)-4,4,5,5-tetramethyl-1,3,2-dioxoborolane
2-methyl-5-(pinacolboryl)thiophene
5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-2-methylthiophene
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