thiophene-3-boronic acid pinacol ester

Modify Date: 2024-01-03 12:21:49

thiophene-3-boronic acid pinacol ester Structure
thiophene-3-boronic acid pinacol ester structure
Common Name thiophene-3-boronic acid pinacol ester
CAS Number 214360-70-0 Molecular Weight 210.101
Density 1.1±0.1 g/cm3 Boiling Point 286.5±13.0 °C at 760 mmHg
Molecular Formula C10H15BO2S Melting Point N/A
MSDS N/A Flash Point 127.1±19.8 °C

 Names

Name 4,4,5,5-tetramethyl-2-thiophen-3-yl-1,3,2-dioxaborolane
Synonym More Synonyms

 Chemical & Physical Properties

Density 1.1±0.1 g/cm3
Boiling Point 286.5±13.0 °C at 760 mmHg
Molecular Formula C10H15BO2S
Molecular Weight 210.101
Flash Point 127.1±19.8 °C
Exact Mass 210.088577
PSA 46.70000
LogP 2.04730
Vapour Pressure 0.0±0.6 mmHg at 25°C
Index of Refraction 1.501

 MSDS

Material Safety Data Sheet

Section1. Identification of the substance
Product Name: Thiophene-3-boronic acid, pinacol ester
Synonyms:

Section2. Hazards identification
Harmful by inhalation, in contact with skin, and if swallowed.

Section3. Composition/information on ingredients.
Ingredient name:Thiophene-3-boronic acid, pinacol ester
CAS number:214360-70-0

Section4. First aid measures
Skin contact:Immediately wash skin with copious amounts of water for at least 15 minutes while removing
contaminated clothing and shoes. If irritation persists, seek medical attention.
Eye contact:Immediately wash skin with copious amounts of water for at least 15 minutes. Assure adequate
flushing of the eyes by separating the eyelids with fingers. If irritation persists, seek medical
attention.
Inhalation:Remove to fresh air. In severe cases or if symptoms persist, seek medical attention.
Ingestion:Wash out mouth with copious amounts of water for at least 15 minutes. Seek medical attention.

Section5. Fire fighting measures
In the event of a fire involving this material, alone or in combination with other materials, use dry
powder or carbon dioxide extinguishers. Protective clothing and self-contained breathing apparatus
should be worn.

Section6. Accidental release measures
Personal precautions: Wear suitable personal protective equipment which performs satisfactorily and meets local/state/national
standards.
Respiratory precaution:Wear approved mask/respirator
Hand precaution:Wear suitable gloves/gauntlets
Skin protection:Wear suitable protective clothing
Eye protection:Wear suitable eye protection
Methods for cleaning up: Mix with sand or similar inert absorbent material, sweep up and keep in a tightly closed container
for disposal. See section 12.
Environmental precautions: Do not allow material to enter drains or water courses.

Section7. Handling and storage
Handling:This product should be handled only by, or under the close supervision of, those properly qualified
in the handling and use of potentially hazardous chemicals, who should take into account the fire,
health and chemical hazard data given on this sheet.
Store in closed vessels, refrigerated.
Storage:

Section8. Exposure Controls / Personal protection
Engineering Controls: Use only in a chemical fume hood.
Personal protective equipment: Wear laboratory clothing, chemical-resistant gloves and safety goggles.
General hydiene measures: Wash thoroughly after handling. Wash contaminated clothing before reuse.

Section9. Physical and chemical properties
Appearance:Not specified
Boiling point:No data
No data
Melting point:
Flash point:No data
Density:No data
Molecular formula:C10H15BO2S
Molecular weight:210.1

Section10. Stability and reactivity
Conditions to avoid: Heat, flames and sparks.
Materials to avoid: Oxidizing agents.
Possible hazardous combustion products: Carbon monoxide, sulfur oxides.

Section11. Toxicological information
No data.

Section12. Ecological information
No data.

Section13. Disposal consideration
Arrange disposal as special waste, by licensed disposal company, in consultation with local waste
disposal authority, in accordance with national and regional regulations.

Section14. Transportation information
Non-harzardous for air and ground transportation.

Section15. Regulatory information
No chemicals in this material are subject to the reporting requirements of SARA Title III, Section
302, or have known CAS numbers that exceed the threshold reporting levels established by SARA
Title III, Section 313.


SECTION 16 - ADDITIONAL INFORMATION
N/A

 Safety Information

Hazard Codes T+
Risk Phrases R26/28:Very Toxic by inhalation and if swallowed .
Safety Phrases S25-S45
RIDADR 1544
Packaging Group III
Hazard Class 6.1(b)
HS Code 2934999090

 Synthetic Route

~75%

thiophene-3-boronic acid pinacol ester Structure

thiophene-3-bor...

CAS#:214360-70-0

Literature: Billingsley, Kelvin L.; Barder, Timothy E.; Buchwald, Stephen L. Angewandte Chemie - International Edition, 2007 , vol. 46, # 28 p. 5359 - 5363

~%

thiophene-3-boronic acid pinacol ester Structure

thiophene-3-bor...

CAS#:214360-70-0

Literature: US6680401 B1, ; Page column 59 ;

~92%

thiophene-3-boronic acid pinacol ester Structure

thiophene-3-bor...

CAS#:214360-70-0

Literature: Asachenko, Andrey F.; Sorochkina, Kristina R.; Dzhevakov, Pavel B.; Topchiy, Maxim A.; Nechaev, Mikhail S. Advanced Synthesis and Catalysis, 2013 , vol. 355, # 18 p. 3553 - 3557

~92%

thiophene-3-boronic acid pinacol ester Structure

thiophene-3-bor...

CAS#:214360-70-0

Literature: Nagashima, Yuki; Takita, Ryo; Yoshida, Kengo; Hirano, Keiichi; Uchiyama, Masanobu Journal of the American Chemical Society, 2013 , vol. 135, # 50 p. 18730 - 18733

~96%

thiophene-3-boronic acid pinacol ester Structure

thiophene-3-bor...

CAS#:214360-70-0

Literature: Nagashima, Yuki; Takita, Ryo; Yoshida, Kengo; Hirano, Keiichi; Uchiyama, Masanobu Journal of the American Chemical Society, 2013 , vol. 135, # 50 p. 18730 - 18733

~57%

thiophene-3-boronic acid pinacol ester Structure

thiophene-3-bor...

CAS#:214360-70-0

Literature: Billingsley, Kelvin L.; Buchwald, Stephen L. Journal of Organic Chemistry, 2008 , vol. 73, # 14 p. 5589 - 5591

~94%

thiophene-3-boronic acid pinacol ester Structure

thiophene-3-bor...

CAS#:214360-70-0

Literature: Newby, James A.; Huck, Lena; Blaylock, D. Wayne; Witt, Paul M.; Ley, Steven V.; Browne, Duncan L. Chemistry - A European Journal, 2014 , vol. 20, # 1 p. 263 - 271

~%

Detail
Literature: Chemical Communications, , # 35 p. 3667 - 3669

~%

thiophene-3-boronic acid pinacol ester Structure

thiophene-3-bor...

CAS#:214360-70-0

Literature: Organic and Biomolecular Chemistry, , vol. 9, # 9 p. 3139 - 3141

 Customs

HS Code 2934999090
Summary 2934999090. other heterocyclic compounds. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

 Synonyms

4,4,5,5-Tetramethyl-2-(3-thienyl)-1,3,2-dioxaborolane
2-(Thiophene-3-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane
3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)thiophene
3-Thiopheneboronic acid pinacol ester
thiophene-3-boronic acid pinacol ester
4,4,5,5-tetramethyl-(thiophen-2-yl)-1,3,2-dioxaborolane
MFCD05663893
4,4,5,5-tetramethyl-2-(thiophen-3-yl)-1,3,2-dioxaborolane
4,4,5,5-Tetramethyl-2-(thien-3-yl)-1,3,2-dioxaborolane
Thiophene-3-boronic acid,pinacol ester
1,3,2-Dioxaborolane, 4,4,5,5-tetramethyl-2-(3-thienyl)-
Top Suppliers:I want be here


Get all suppliers and price by the below link:

thiophene-3-boronic acid pinacol ester suppliers


Price: ¥217/1g

Reference only. check more thiophene-3-boronic acid pinacol ester price