ChemicalBook--->CAS DataBase List--->7712-05-2

7712-05-2

7712-05-2 Structure

7712-05-2 Structure
IdentificationBack Directory
[Name]

4,6-Dihydrothieno[3,4-b]thiophene-2-carboxylic acid
[CAS]

7712-05-2
[Synonyms]

4,6-Dihydrothieno[3,4-b]thiophene-2-carboxylic acid
4,6-dihydrothieno[2,3-c]thiophene-2-carboxylic acid
4,6-Dihydrothieno[3,4-b]thiophene-2-carboxylicAcid>
Thieno[3,4-b]thiophene-2-carboxylic acid, 4,6-dihydro-
4,6-Dihydrothieno[3,4-b]thiophene-2-carboxylic acid 96%
4,6-Dihydrothieno[3,4-b]thiophene-2-carboxylic Acid
[Molecular Formula]

C7H6O2S2
[MDL Number]

MFCD20642620
[MOL File]

7712-05-2.mol
[Molecular Weight]

186
Chemical PropertiesBack Directory
[Melting point ]

240°C(lit.)
[density ]

1.551
[storage temp. ]

Keep in dark place,Sealed in dry,2-8°C
[form ]

powder to crystal
[color ]

Light orange to Yellow to Green
[InChIKey]

RBINIIIGSUWMLQ-UHFFFAOYSA-N
Safety DataBack Directory
[Symbol(GHS) ]


GHS07
[Signal word ]

Warning
[Hazard statements ]

H315-H319
[Precautionary statements ]

P264-P280-P302+P352+P332+P313+P362+P364-P305+P351+P338+P337+P313
[HS Code ]

2934999090
Hazard InformationBack Directory
[Uses]

4,6-Dihydrothieno[3,4-b]thiophene-2-carboxylic acid can be used as organic synthesis intermediates and pharmaceutical intermediates, mainly used in laboratory research and development processes and pharmaceutical and chemical production processes.
[Synthesis]

1.png
Compound 3 was dissolved in ethanol,Potassium hydroxide was added and refluxed at 78 ° C for 4 h,After cooling to room temperature (25 ° C), the reaction solution was extracted with IM HCl, extracted with ethyl acetate, dried over Mg2SO4 and dried to give the title compound 4 (92%).
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