239075-02-6

239075-02-6 - Names and Identifiers

Name	2,2'-Bithiophene-5,5'-diboronic acid bis(pinacol) ester
Synonyms	-diboronic acid 2,2'-Bithiophene-5,5'-diboronic acid bis(pinacol) 2,2'-Bithiophene-5,5'-diboronic acid pinacol ester 2,2'-Bithiophene-5,5'-diboronic acid bis(pinacol) ester 2,2'-(2,2'-Bithiene-5,5'-diyl)bis(4,4,5,5-tetramethyl-1,3,2-dioxaborolane) 1,3,2-dioxaborolane, 2,2'-[2,2'-bithiophene]-5,5'-diylbis[4,4,5,5-tetramethyl- 1,3,2-Dioxaborolane, 2,2'-[2,2'-bithiophene]-5,5'-diylbis[4,4,5,5-tetramethyl-
CAS	239075-02-6
InChI	InChI=1/C20H28B2O4S2/c1-17(2)18(3,4)24-21(23-17)15-11-9-13(27-15)14-10-12-16(28-14)22-25-19(5,6)20(7,8)26-22/h9-12H,1-8H3

239075-02-6 - Physico-chemical Properties

Molecular Formula	C20H28B2O4S2
Molar Mass	418.19
Density	1.16±0.1 g/cm3(Predicted)
Melting Point	208-212 °C
Boling Point	530.5±50.0 °C(Predicted)
Flash Point	274.612°C
Solubility	Benzene (Slightly), Chloroform (Slightly), DMSO (Slightly), Methanol (Slightly,
Vapor Presure	0mmHg at 25°C
Appearance	Solid
Color	White to Off-White
Storage Condition	Keep in dark place,Sealed in dry,Room Temperature
Stability	Moisture Sensitive
Refractive Index	1.546
MDL	MFCD06798112

239075-02-6 - Risk and Safety

WGK Germany

239075-02-6 - Introduction

2,2 '-Bithiophene-5,5'-diboronic acid bis(pinacol) ester is an organic compound with the chemical formula C20H22B2O4S2. It is a white to pale yellow crystal or solid powder.

Nature:
-Melting point: About 102-104 degrees Celsius
-Solubility: Soluble in common organic solvents (such as ethanol, toluene, etc.)

Use:
2,2 '-Bithiophene-5,5'-diboronic acid bis(pinacol) ester is commonly used in the preparation of organic electronic devices, especially organic optoelectronic devices (such as organic solar cells and organic light-emitting diodes). As an organic semiconductor material, it has good charge transport properties and luminescence properties.

Method:
2,2 '-Bithiophene-5,5'-diboronic acid bis(pinacol) ester can be prepared by the following steps:
1. Reaction of 2,2 '-dithiophene with diboronic acid to give 2,2'-dithiophene-5, 5 '-diboronic acid.
2. React 2,2 '-dithiophene-5, 5'-diboronic acid with pinacol to generate 2,2 '-Bithiophene-5,5'-diboronic acid bis(pinacol) ester.

Safety Information:
When using and storing 2,2 '-Bithiophene-5,5'-diboronic acid bis(pinacol) ester, follow regular laboratory safety procedures, this includes wearing appropriate protective equipment (e. G. Gloves, goggles) and maintaining good ventilation. This compound may be irritating to the skin, eyes and respiratory tract, so direct contact or inhalation should be avoided. Follow relevant waste management regulations during handling and disposal.

Last Update：2024-04-10 22:29:15