14630-08-1

Usage

Uses

Used in Flavoring Agents:
Acetic acid thieno[3,4-b]thiophen-2-yl ester is used as a flavoring agent in food and beverages due to its strong odorous scent.
Used in Organic Synthesis and Chemical Research:
Acetic acid thieno [3,4-b] thiophen-2-yl ester is utilized in various industrial applications, such as in the production of polymers, plastics, and pharmaceuticals, as well as in the development of new materials and drugs.
Used in Pharmaceutical Development:
Acetic acid thieno[3,4-b]thiophen-2-yl ester has been studied for its potential use in the development of new drugs due to its unique chemical properties, which may contribute to the creation of novel therapeutic agents.
Used in Material Science:
Its unique chemical properties also make it a candidate for the development of new materials, potentially enhancing the properties of existing materials or creating new ones with specific characteristics.

Upstream product

• 7712-07-4 5-Oxo-4,6-dihydro-5λ⁴-thieno<3,4-b>thiophen-2-carbonsaeure 
• 7712-05-2 4,6-dihydrothieno[3,4-b]thiophene-2-carboxylic acid 
• 14630-09-2 thieno[3,4-b]thiophene-2-carboxylic acid methyl ester 
• 7767-60-4 4,6-Dihydro-thieno[3,4-b]thiophene-2-carboxylic acid methyl ester 
• 7353-89-1 4,5-Bis-chloromethyl-thiophene-2-carboxylic acid methyl ester 
• 5380-42-7 thiophene-2-carboxylic acid methyl ester 

Relevant academic research and scientific papers

NIR-absorbing poly(thieno[3,4-b]thiophene-2-carboxylic acid) as a polymer dye for dye-sensitized solar cells

Thieno[3,4-b]thiophene-2-carboxylic acid (TTHC) was newly synthesized and poly(thieno[3,4-b]thiophene-2-carboxylic acid) (PTTHC), showing NIR absorption with a low band gap of 1.0 eV, was prepared by chemical or electrochemical polymerization. Vis-NIR spectroscopic studies on PTTHC adsorption revealed that the presence of pendant carboxylic groups on a polymer chain is important to obtain highly sensitized TiO2. The extent of PTTHC adsorption showed proportional increases as raising the adsorption temperatures, reaching saturation at the amount equivalent to a monolayer formation (this does not mean PTTHC monolayer coverage on TiO2). Sequential treatments of TiO2 revealed that the polymer can be adsorbed on N3-adsorbed TiO2 without desorbing N3. The amounts of PTTHC adsorbed on N3-adsorbed TiO2 with increasing adsorption temperatures implied that only a small fraction of polymer chains is involved in anchoring with most chain segments remaining unbound to TiO2. The dye adsorption behaviors were further studied by FTIR, EDX, and TGA. Finally, PTTHC was applied for the preparation of panchromatic dye-sensitized solar cells. The power conversion efficiency (η) of 1.2% for PTTHC-adsorbed TiO2 was increased to 4.3% after N3 adsorption on PTTHC-adsorbed TiO2. Similar enhancement of η was observed after PTTHC treatment on N3-adsorbed TiO2.

Fused-heterocycle compound and preparation method thereof

The invention discloses a fused-heterocycle compound and a preparation method thereof. A structural general formula is shown as formula 1, X is selected from S or Se; Y is selected from one of S, Se or O; R1 and R2 are selected from hydrogen or iodine, and R1 and R2 are different; R3 is selected from any one of -OH, -OR4 or a polyether group, wherein R4 is an alkyl of a straight chain or a branched chain of C1-C30 or an alkyl of a straight chain or a branched chain of C1-C30 which is substituted by halogen. A series of reactions and hydrolysis are carried out in order to obtain the compound, and at the same time, an intermediate shown in a formula 2 and a preparation method thereof are provided. The preparation method is simple, raw materials have wide sources, products of each reaction have high yields, and obtained yields of target products are higher; the compound shown in the formula 1 can be applied to synthesis of a semi-conducting polymer, and can be used as parent compounds for synthesis of other fused-heterocycle compounds. Structural modification can be carried out in a plurality of modes for the middle shown in the formula 2, so that derivatives with a plurality of structures are obtained.

HETEROCYCLIC COMPOUND AND ORGANIC SOLAR CELL COMPRISING THE SAME

The present specification provides a heterocyclic compound and an organic solar cell comprising the same. In addition, the present specification comprises: a first electrode; a second electrode provided opposite to the first electrode; and one or more organic material layers which are provided between the first electrode and the second electrode and include a photoactive layer.COPYRIGHT KIPO 2016