| Identification | Back Directory | [Name]
2',3'-d]thiophene-2,5-dicarboxylic acid diethyl ester | [CAS]
502764-52-5 | [Synonyms]
2',3'-d]thiophene-2,5-dicarboxylic acid diethyl ester
Diethyl dithieno[3,2-b:2',3'-d]thiophene-2,6-dicarboxylate
2,6-Diethyl dithieno[3,2-b:2',3'-d]thiophene-2,6-dicarboxylate
dithieno[3,2-b:2,3-d]thiophene-2,6-dicarboxylic acid diethyl ester
DITHIENO[3,2-B;2',3'-D]THIOPHENE-2,5-DICARBOXYLIC ACID DIETHYL ESTER
Dithieno[3,2-b:2',3'-d]thiophene-2,6-dicarboxylic acid, 2,6-diethyl ester
4,10-Diethyl 3,7,11-trithiatricyclo[6.3.0.02,6]undeca-1(8),2(6),4,9-tetraene-4,10-dicarboxylate | [Molecular Formula]
C14H12O4S3 | [MDL Number]
MFCD23103811 | [MOL File]
502764-52-5.mol | [Molecular Weight]
340.44 |
| Chemical Properties | Back Directory | [Melting point ]
189-190 °C(Solv: water (7732-18-5)) | [Boiling point ]
485.4±40.0 °C(Predicted) | [density ]
1.449±0.06 g/cm3(Predicted) | [storage temp. ]
Keep in dark place,Sealed in dry,Room Temperature | [Appearance]
Off-white to yellow Solid | [InChI]
InChI=1S/C14H12O4S3/c1-3-17-13(15)9-5-7-11(20-9)12-8(19-7)6-10(21-12)14(16)18-4-2/h5-6H,3-4H2,1-2H3 | [InChIKey]
SXBIAKZMSXMKTA-UHFFFAOYSA-N | [SMILES]
C12C=C(C(OCC)=O)SC=1C1SC(C(OCC)=O)=CC=1S2 |
| Hazard Information | Back Directory | [Synthesis]
The general procedure for the synthesis of ethyl dithieno[3,2-b:2',3'-d]thiophene-2,5-dicarboxylate from 3,4-dibromothiophene-2,5-dicarboxaldehyde and ethyl thioglycolate was as follows: 187.6 g (0.630 mol) of 3,4-dibromothiophene-2,5-dicarboxaldehyde and 5.8 L of N,N-dimethylformamide were added to a 10 L round-bottom flask, followed by the addition of 226.3 g (1.637 mol) ethyl mercaptoacetate and 155.2 g (1.291 mol) potassium carbonate. The mixture was stirred at room temperature for 3 days. After completion of the reaction, the reaction mixture was poured into water and extracted with dichloromethane. The organic layer was separated, concentrated under reduced pressure and dried to give 152.0 g (70.9% yield) of the target product ethyl dithieno[3,2-b:2',3'-d]thiophene-2,5-dicarboxylate. | [References]
[1] Chemical Communications, 2002, # 20, p. 2424 - 2425
[2] Patent: KR101791161, 2017, B1. Location in patent: Paragraph 0204; 0217-0222
[3] Organic Syntheses, 2006, vol. 83, p. 209 - 216
[4] New Journal of Chemistry, 2018, vol. 42, # 14, p. 11458 - 11464 |
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