2,5-Dichlorothiophene

2,5-Dichlorothiophene Suppliers list

Company Name:	Shaanxi Dideu Medichem Co. Ltd
Tel:	+86-029-81138252 +86-173 9270 1263
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Tel:	+undefined-21-51877795
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Products Intro:	Product Name:2,5-Dichlorothiophene CAS:3172-52-9 Purity:98% HPLC Package:5G;10G;25G;50G;100G;250G;1KG

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Tel:	+86-0551-65418679 +8618949832763
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Products Intro:	Product Name:2,5-Dichlorothiophene CAS:3172-52-9 Purity:0.99 Package:5KG;1KG

2,5-Dichlorothiophene manufacturers

2,5-Dichlorothiophene Basic information

Product Name:	2,5-Dichlorothiophene
Synonyms:	DICHLOROTHIOPHENE;2,5-DICHLOROTHIOPHENE;2,6-DICHLOROTHIOPHENE;2,5-dichloro-thiophen;thiophene,2,5-dichloro-;2,5-Dichlorothiophenene;2,5-Dichlorothiophene,97%;5-chloro-2-thienyl chloride
CAS:	3172-52-9
MF:	C4H2Cl2S
MW:	153.03
EINECS:	221-638-8
Product Categories:	Heterocycle-oher series;Halogenated Heterocycles;Heterocyclic Building Blocks;ThiophenesBuilding Blocks;Thiophenes;Organics;Thiophene&Benzothiophene;Miscellaneous;Thiophens
Mol File:	3172-52-9.mol

2,5-Dichlorothiophene Chemical Properties

Melting point	-41--40°C
Boiling point	162 °C (lit.)
density	1.442 g/mL at 25 °C (lit.)
refractive index	1.561-1.563
Fp	59 °C
storage temp.	2-8°C
form	liquid
color	Colorless to Light yellow to Light orange
Specific Gravity	1.442
BRN	109887
InChI	InChI=1S/C4H2Cl2S/c5-3-1-2-4(6)7-3/h1-2H
InChIKey	FGYBDASKYMSNCX-UHFFFAOYSA-N
SMILES	C1(Cl)SC(Cl)=CC=1
CAS DataBase Reference	3172-52-9(CAS DataBase Reference)
NIST Chemistry Reference	Thiophene, 2,5-dichloro-(3172-52-9)
EPA Substance Registry System	Thiophene, 2,5-dichloro- (3172-52-9)

Safety Information

MSDS Information

2,5-Dichlorothiophene Usage And Synthesis

Chemical Properties	clear colorless to slightly yellow liquid
Uses	2,5-Dichlorothiophene is mainly used as a pharmaceutical intermediate. It is used in the synthesis of 3,4-disubstituted thiophenes.
Synthesis Reference(s)	Tetrahedron, 52, p. 8863, 1996 DOI: 10.1016/0040-4020(96)00433-4
Synthesis	188290-36-0 3172-52-9 The general procedure for the preparation of 2,5-dichlorothiophene is as follows: 1. 300 g of carbon tetrachloride and 84 g of thiophene were added to a 1000 mL three-necked flask, heated to reflux temperature and then 270 g of N-chlorotoluene diimide was slowly added. 2. After completion of the reaction, the reaction mixture was cooled to room temperature and filtered to remove insoluble impurities. 3. The filtrate was concentrated to recover carbon tetrachloride to give the remaining reaction mixture. 4. 4. the remaining reaction mixture was heated to 100 °C and subjected to reduced pressure distillation. 5. The 100 °C fraction was collected as the target product 2,5-dichlorothiophene in a yield of 145 g, 95% yield and 98.5% purity.
References	[1] Patent: CN105481827, 2016, A. Location in patent: Paragraph 0021; 0022 [2] Journal of Organic Chemistry, 1993, vol. 58, # 11, p. 3072 - 3075 [3] Tetrahedron, 1996, vol. 52, # 26, p. 8863 - 8866 [4] Journal of Chemical Crystallography, 2007, vol. 37, # 6, p. 387 - 398 [5] Patent: US2492644, 1947,

2,5-Dichlorothiophene Preparation Products And Raw materials

Raw materials

Preparation Products

Tag:2,5-Dichlorothiophene(3172-52-9) Related Product Information

2,5-DICHLOROTHIOPHENE-3-SULFONAMIDE,2,5-Dichlorothiophene-3-sulfonamide ,97% 2,5-DICHLOROTHIOPHENE-3-CARBOXYLIC ACID 2,3-DICHLOROTHIOPHENE 2,5-Dichlorothiophene-3-sulfonyl chloride 3-BROMO-2,5-DICHLOROTHIOPHENE 2,4-Dichlorothieno[2,3-d]pyrimidine 2,4-DICHLOROTHIENO[3,2-D]PYRIMIDINE 2,4-Dichlorothieno[3,2-d]pyrimidine 2,5-DICHLOROTHIOPHENE-3-CARBONYL CHLORIDE,2,5-DICHLOROTHIOPHENE-3-CARBOXYLICHLORIDE 2,5-DICHLOROTHIOPHENE-3-SULFINIC ACID SODIUM SALT 4,5-Dichlorothiophene-2-sulfonamide,2,3-DICHLOROTHIOPHENE-5-SULFONAMIDE 3,4-Dichlorothiophene 2,6-DICHLOROTHIOPHENE METHYL 2,5-DICHLOROTHIOPHENE-3-CARBOXYLATE 2,3-DICHLOROTHIOPHENE-5-SULFONYL CHLORIDE,2,3-DICHLOROTHIOPHENE-5-SULPHONYL CHLORIDE 3-ACETYL-2,5-DICHLOROTHIOPHENE 3,4-DIBROMO-2,5-DICHLOROTHIOPHENE 2,5-Dichlorothiophene-3-carbaldehyde

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