13250-82-3

Basic information

• Product Name: 3-Thiophenecarboxaldehyde ethylene acetal
• Synonyms: 3-Thiophenecarboxaldehyde ethylene acetal;2-(3-Thienyl)-1,3-dioxolane;3-(1,3-Dioxolan-2-yl)thiophene;2-thiophen-3-yl-1,3-dioxolane;2-Thioph-3-Yl-[1,3]Dioxolane
• CAS NO: 13250-82-3
• Molecular Formula: C₇H₈O₂S
• Molecular Weight: 156.20222
• Mol File: 13250-82-3.mol
• Article Data: 15

Chemical Properties

• Boiling Point: 84°C/1.4mmHg(lit.)
• Flash Point: 102.2 °C
• Appearance: /
• Density: 1.254 g/cm³
• Vapor Pressure: 0.0453mmHg at 25°C
• Refractive Index: 1.5430 to 1.5470
• Storage Temp.: 2-8°C(protect from light)
• CAS DataBase Reference: 3-Thiophenecarboxaldehyde ethylene acetal(CAS DataBase Reference)
• NIST Chemistry Reference: 3-Thiophenecarboxaldehyde ethylene acetal(13250-82-3)
• EPA Substance Registry System: 3-Thiophenecarboxaldehyde ethylene acetal(13250-82-3)

Safety Data

• Hazardous Substances Data: 13250-82-3(Hazardous Substances Data)

Usage

General Description

3-Thiophenecarboxaldehyde ethylene acetal is a chemical compound with the molecular formula C9H10O2S. It is a colorless to pale yellow liquid with a strong odor. 3-Thiophenecarboxaldehyde ethylene acetal is commonly used as a building block in the synthesis of various pharmaceuticals, agrochemicals, and fragrances. It is also used as a flavoring agent in the food industry. 3-Thiophenecarboxaldehyde ethylene acetal is a versatile intermediate in organic synthesis, and its unique structure makes it an important precursor in the production of a wide range of valuable compounds. It is important to handle this chemical with caution as it may be harmful if ingested or inhaled, and can cause skin and eye irritation.

InChI:InChI=1/C7H8O2S/c1-4-10-5-6(1)7-8-2-3-9-7/h1,4-5,7H,2-3H2

Upstream product

• 498-62-4 3-thiophene carboxaldehyde 
• 6192-52-5 p-toluenesulfonic acid monohydrate 
• 616-44-4 3-Methylthiophene 
• 34846-44-1 3-Bromomethylthiophene 
• 107-21-1 ethylene glycol 

Downstream Products

• 103011-38-7 3-(1,3-dioxolan-2-yl)thiophene-2-sulfonyl chloride 
• 13250-83-4 2,3-Thiophenedicarbaldehyde 3-(Ethylene acetal) 
• 14756-75-3 thieno<2,3-b>thiophene-2-carboxylic acid 
• 1431866-23-7 C₁₈H₂₀N₂OS₂ 
• 1431866-21-5 C₁₇H₁₈N₂OS₂ 
• 1431866-20-4 C₁₇H₁₈N₂OS₂ 
• 1431866-19-1 C₁₉H₂₂N₂O₂S₂ 
• 1431866-17-9 C₁₉H₂₂N₂OS₂ 
• 1431866-16-8 C₁₉H₂₂N₂O₂S₂ 
• 1431866-10-2 C₁₈H₂₀N₂OS₂ 
• 84815-20-3 2-methyl-3-thiophenecarboxaldehyde 
• 128620-92-8 5-<<(methoxyethyl)<(methoxyethoxy)ethyl>amino>methyl>thieno<2,3-b>thiophene-2-sulfonamide 
• 133445-74-6 5-[(2-Methanesulfonyl-ethylamino)-methyl]-thieno[2,3-b]thiophene-2-sulfonic acid amide 
• 122266-99-3 5-[(2-Methylsulfanyl-ethylamino)-methyl]-thieno[2,3-b]thiophene-2-sulfonic acid amide 

Relevant articles and documents

Small isomeric push-pull chromophores based on thienothiophenes with tunable optical (non)linearities

Fourteen new D-π-A push-pull chromophores based on two isomeric thienothiophene donors and seven acceptors of various electronic natures have been designed and conveniently synthesized. In contrast to known thienothiophene push-pull molecules, the prepared small chromophores proved to be organic materials with easily tunable thermal, electrochemical and (non)linear optical properties. It has also been shown that small structural variation may result in significantly improved/varied fundamental properties. Very detailed structure-property relationships were elucidated within the systematically developed series of push-pull molecules, which may serve as a useful guide in designing new D-π-A molecules based on fused thiophene scaffolds.

Method for preparing thiophene borate

The invention relates to a method for preparing thiophene borate. The method comprises the following steps: (1) mixing 3-thiophenecarboxaldehyde, p-toluene sulfonic acid monohydrate, ethylene glycol and methylbenzene, performing a backflow dehydration reaction, and performing extraction, drying, filtration, spinning drying and elution in sequence so as to obtain 2-(3-thienyl)-1,3-dioxolame; (2) performing nitrogen displacement on 2-(3-thienyl)-1,3-dioxolame, adding anhydrous tetrahydrofuran, dropping n-butyllithium and isopropoxy boric acid pinacol ester to implement a reaction, performing a quenching reaction, extraction, drying, spinning drying, adding dichloromethane to completely dissolve the components, further adding petroleum ether till no solid is separated out, finally performingspinning evaporation to remove dichloromethane and residual petroleum ether, and performing freezing and suction extraction when a 2-boric acid pinacol diester-3-(1,3-dioxolame)-yl thiophene solid isseparated out, thereby obtaining a white solid, namely 2-boric acid pinacol diester-3-(1,3-dioxolame)-yl thiophene. The method provided by the invention is simple, high in yield and easy in industrialproduction.

Outside rules inside: The role of electron-active substituents in thiophene-based heterophenoquinones

The biradicaloid vs. quinoidal character of the ground state of thiophene-based heterophenoquinones bearing donor or acceptor groups is investigated. Keeping the conjugation length fixed, namely, the 5,5′-bis(3,5-di-tert-butyl-4-oxo-2,5-cyclohexadiene-1-y