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ChemicalBook > Product Catalog >Pharmaceutical intermediates >Heterocyclic compound >Thiophene compounds >3,6-DIBROMOTHIENO[3,2-B]THIOPHENE

3,6-DIBROMOTHIENO[3,2-B]THIOPHENE

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CAS:392662-65-6
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3,6-DIBROMOTHIENO[3,2-B]THIOPHENE Basic information
Product Name:3,6-DIBROMOTHIENO[3,2-B]THIOPHENE
Synonyms:3,6-DIBROMOTHIENO[3,2-B]THIOPHENE;BTH-3Sn;3,6-Dibromothieno[3,2-b]thiophene>;Thieno[3,2-b]thiophene, 3,6-dibromo-;3,6-DIBROMOTHIENO[3,2-B]THIOPHENE ISO 9001：2015 REACH;3,6-Dibromothiophene [3,2-B] thiophene
CAS:392662-65-6
MF:C6H2Br2S2
MW:298.02
EINECS:
Product Categories:Heterocycle-oher series
Mol File:392662-65-6.mol
3,6-DIBROMOTHIENO[3,2-B]THIOPHENE Structure
3,6-DIBROMOTHIENO[3,2-B]THIOPHENE Chemical Properties
Melting point 127 °C
Boiling point 332.4±37.0 °C(Predicted)
density 2.209±0.06 g/cm3(Predicted)
storage temp. Keep in dark place,Inert atmosphere,2-8°C
form powder to crystal
color White to Yellow to Orange
InChIInChI=1S/C6H2Br2S2/c7-3-1-9-6-4(8)2-10-5(3)6/h1-2H
InChIKeyDFMPVYZMICAYCS-UHFFFAOYSA-N
SMILESC12C(Br)=CSC=1C(Br)=CS2
Safety Information
HS Code 2934999090
MSDS Information
3,6-DIBROMOTHIENO[3,2-B]THIOPHENE Usage And Synthesis
Synthesis
TETRABROMO-THIENO[3,2-B]THIOPHENE

124638-53-5

3,6-DIBROMOTHIENO[3,2-B]THIOPHENE

392662-65-6

The general procedure for the synthesis of 3,6-dibromothieno[3,2-b]thiophene from tetrabromothieno[3,2-B]thiophene was carried out as follows: tetrabromothieno[3,2-B]thiophene (9.12 g, 20 mmol), acetic acid (500 ml), and toluene (200 ml) were added to the reactor, followed by zinc powder (2.62 g, 40 mmol). The reaction mixture was filtered and the filtrate was concentrated to give the intermediate 3,6-dibromothieno[3,2-b]thiophene (5.36 g, 90% yield). After completion of the reaction, the synthesis of intermediate C-28-2 was carried out.

References[1] Patent: CN107056798, 2017, A. Location in patent: Paragraph 0065; 0066; 0067
[2] Patent: WO2016/92065, 2016, A1. Location in patent: Page/Page column 21; 22
[3] Journal of the Chemical Society - Perkin Transactions 1, 1997, # 22, p. 3465 - 3470
[4] Patent: CN103172646, 2016, B. Location in patent: Paragraph 0114-0116
[5] Chemical Communications, 2005, # 9, p. 1161 - 1163
3,6-DIBROMOTHIENO[3,2-B]THIOPHENE Preparation Products And Raw materials
Raw materialsTETRABROMO-THIENO[3,2-B]THIOPHENE-->Acetic acid-->Toluene-->ZINC
Tag:3,6-DIBROMOTHIENO[3,2-B]THIOPHENE(392662-65-6) Related Product Information
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