1295502-12-3

Basic information

• Product Name: 5H-dithieno[3,2-b:2',3'-d]pyran-5-one
• Synonyms: 5H-dithieno[3,2-b:2',3'-d]pyran-5-one
• CAS NO: 1295502-12-3
• Molecular Weight: 208.262
• Mol File: 1295502-12-3.mol
• Article Data: 13

Chemical Properties

• Boiling Point: 387.8±17.0 °C(Predicted)
• Density: 1.570±0.06 g/cm3(Predicted)
• CAS DataBase Reference: 5H-dithieno[3,2-b:2',3'-d]pyran-5-one(CAS DataBase Reference)
• NIST Chemistry Reference: 5H-dithieno[3,2-b:2',3'-d]pyran-5-one(1295502-12-3)
• EPA Substance Registry System: 5H-dithieno[3,2-b:2',3'-d]pyran-5-one(1295502-12-3)

Safety Data

• Hazardous Substances Data: 1295502-12-3(Hazardous Substances Data)

Usage

General Description

5H-dithieno[3,2-b:2',3'-d]pyran-5-one, also known as DTPO, is a heterocyclic compound with a unique structure consisting of two fused thiophene rings and a pyran ring. It is an organic compound that exhibits interesting photochemical and electrochemical properties, making it potentially useful in various applications, such as organic electronic devices and optical materials. DTPO has been studied for its fluorescence and absorption properties, as well as its potential as a component in photochromic and electrochromic materials. Its unique structure and properties make it a fascinating subject for further research and potential technological applications.

Upstream product

• 498-62-4 3-thiophene carboxaldehyde 
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• 636588-79-9 2,6-dibromo-4H-cyclopenta[2,1-b:3,4-b′]dithiophen-4-one 
• 25796-77-4 4H-cyclopenta[2,1-b:3,4-b']dithiophen-4-one 
• 76-05-1 trifluoroacetic acid 
• 76360-43-5 methyl 2-bromothiophene-3-carboxylate 
• 88-13-1 3-Thiophene carboxylic acid 
• 19783-52-9 [2,2'-bithiophene]-3-carboxylic acid 

Downstream Products

• 1295502-20-3 5-(3,7-dimethyloctyl)-5-(3-methyloctyl)-5Hdithieno[3,2-b:2',3'-d]pyran 

Relevant articles and documents

Oxygen heterocycle-fused indacenodithiophenebithiophene enables an efficient non-fullerene molecular acceptor

To improve the power conversion efficiency (PCE) of solar cells based on non-fullerene acceptors (NFAs), designing low bandgap NFAs of enhanced light-harvesting capability is desirable. Herein, a new set of NFAs based on an oxygen heterocycle-fused indace

Facile synthesis of a narrow-bandgap strong-donor-alt-strong-acceptor copolymer of poly(5,6-difluorobenzo-[c][1,2,5]-thiadiazole-alt-5H-dithieno[3,2-b:2′,3'-d]pyran) via direct C-H arylation polymerization

A narrow bandgap D-A conjugated polymer based on 5H-dithieno [3,2-b:2′,3'-d]pyran alternating with 5,6-difluoro-2,1,3-benzothiadiazole (denoted as PDFBT-alt-DTP) was synthesized via direct C-H arylation polymerization (DAP) as an atomically efficient protocol. The optimal reaction condition for the DAP gave the target polymers with moderate number-average molecular weights (Mn) using optimized catalytic condition of Pd2 (dba)3/(o-MeOPh)3P/PivOH/K2CO3 in o-xylene. UV-vis-NIR absorption spectra of the obtained polymers show the presence of aggregation and interchain interaction in thin films. 1H-NMR spectroscopic analysis indicates good C-H selectivity corresponding to an alternating strong-donor-alt-strong-acceptor conjugated backbone. The hole mobility of the resulting polymers in a magnitude of 10?4 cm2V?1s?1 was reached in bottom-gate top-contact field-effect transistors fabricated and tested under ambient conditions.

PROCESS FOR PRODUCING COMPOUND

PROBLEM TO BE SOLVED: To provide a process for producing a compound in which an aromatic heterocyclic ring is fused to a lactone ring, with good yield. SOLUTION: Provided is a process for producing a compound comprising a lactone ring represented by the following formula (2), including a step in which a compound represented by the formula (1) is reacted in a solvent under the presence of a base, a copper compound, and an additive. (In the above formula: X is halogen; Y is S, O or N; R1 is, when Y is N, H or an alkyl group or the like; Z is C or N; and R2, when Z is C, represents H or an alkyl group and the like.). SELECTED DRAWING: None COPYRIGHT: (C)2018,JPOandINPIT