(5-Chloro-2-thienyl)boronic acid

Basic Information

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CAS Number

162607-18-3

Molecular Formula

C4H4BClO2S

Molecular Weight

162.41 g/mol

Chemical Classification

Basic Chemical Raw Materials Organic Chemicals Heterocyclic Compounds

Pharmaceutical Chemicals Pharmaceutical Intermediates Heterocyclic Intermediates

Agricultural Chemicals Pesticides Herbicides

Basic Physical Properties

Melting Point

136-140 °C

Boiling Point

320.9 ºC at 760 mmHg

Density

1.5

Flash Point

147.9 ºC

Refractive Index

1.585

SMILES

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B(C1=CC=C(S1)Cl)(O)O

InChI

InChI=1S/C4H4BClO2S/c6-4-2-1-3(9-4)5(7)8/h1-2,7-8H

InChIKey

JFCLNCVCDFUJPO-UHFFFAOYSA-N

LogP

0.08129999999999982

Topological Polar Surface Area

40.46 Å²

Hydrogen Bond Donor/Acceptor

2 / 2

Complexity

103

Safety Information

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Hazard Statement

H315 Causes skin irritation
Skin corrosion/irritation

H319 Causes serious eye irritation
Serious eye damage/eye irritation

Hazard Class

Class IRRITANT Class IRRITANT

Synonyms & References

English

5-Chloro-2-thienylboronic acid
InChI=1/C4H4BClO2S/c6-4-2-1-3(9-4)5(7)8/h1-2,7-8H
(5-chlorothiophen-2-yl)boronic Acid
5-Chloro-2-thiopheneboronic Acid
2-chlorothiophene-5-boronic acid
5-chloro-thiophen-2-yl-boronic acid
SY015575
C2066
5-chlorothiophen-2-yl boronic acid
NCGC00092005-01
(5-chlorothiophen-2-yl)boronicAcid
CHEMBL142592
BDBM50067891
5-chlorothiophen-2-ylboronic acid
5-chlorothiphene 2-boronic acid
AM86069
AC-33490
EN300-140799
Z1203161835
A3615
5-chlorothien-2-yl boronic acid
MFCD00236030
NCGC00092005-02
162607-18-3
SCHEMBL9155
CS-W016108
5-chloro-thiophen-2-boronic acid
AB05338
5-Chloro-2-thiopheneboronic Acid, (contains varying amounts of Anhydride)
PS-9641
Boronic acid, (5-chloro-2-thienyl)-

MDL Number

MFCD00236030

Customs Code

2934999090

FAQ

What are the physical and chemical properties of (5-Chloro-2-thienyl)boronic acid (CAS: 162607-18-3)?

(5-Chloro-2-thienyl)boronic acid (CAS: 162607-18-3) is a crystalline solid with a molecular weight of approximately 220.93 g/mol. It has limited solubility in water and good solubility in organic solvents. The compound is moderately reactive, particularly in nucleophilic substitution reactions. It is often used as a boronate ester in organic synthesis and displays good reactivity with phenols and alcohols.

How is (5-Chloro-2-thienyl)boronic acid (CAS: 162607-18-3) typically synthesized?

(5-Chloro-2-thienyl)boronic acid (CAS: 162607-18-3) is typically synthesized via the reaction of 2-thiophenecarbaldehyde with boronic acid in the presence of a suitable catalyst, such as Pd(0) and a ligand. The process involves mild conditions and high yields, making it a practical method for industrial and laboratory applications.

What industries use (5-Chloro-2-thienyl)boronic acid (CAS: 162607-18-3)?

(5-Chloro-2-thienyl)boronic acid (CAS: 162607-18-3) is widely used in the pharmaceutical industry for the preparation of chiral compounds and in polymer synthesis for the modification of polymer properties. It also finds applications in the development of sensors and semiconductors due to its unique electronic properties.

What precautions should be taken when handling (5-Chloro-2-thienyl)boronic acid (CAS: 162607-18-3)?

When handling (5-Chloro-2-thienyl)boronic acid (CAS: 162607-18-3), it is important to use personal protective equipment (PPE) such as gloves, goggles, and a lab coat. Work should be conducted in a well-ventilated area or a fume hood to minimize exposure. Spills should be carefully cleaned up, and appropriate disposal methods should be followed. Always consult the Safety Data Sheet (SDS) for detailed instructions and emergency procedures.