65818-64-6

Basic information

• Product Name: diethyl 3,4-diphenylthiophene-2,5-dicarboxylate
• CAS NO: 65818-64-6
• Molecular Formula: C₂₂H₂₀O₄S
• Molecular Weight: 380.4568
• Mol File: 65818-64-6.mol
• Article Data: 3

Chemical Properties

• Boiling Point: 490.6°C at 760 mmHg
• Flash Point: 250.5°C
• Density: 1.195g/cm³
• Vapor Pressure: 9.05E-10mmHg at 25°C
• Refractive Index: 1.584
• CAS DataBase Reference: diethyl 3,4-diphenylthiophene-2,5-dicarboxylate(CAS DataBase Reference)
• NIST Chemistry Reference: diethyl 3,4-diphenylthiophene-2,5-dicarboxylate(65818-64-6)
• EPA Substance Registry System: diethyl 3,4-diphenylthiophene-2,5-dicarboxylate(65818-64-6)

Safety Data

• Hazardous Substances Data: 65818-64-6(Hazardous Substances Data)

Upstream product

• 64-17-5 ethanol 
• 977-57-1 5-(ethoxycarbonyl)-3,4-diphenylthiophene-2-carboxylic acid 
• 134-81-6 benzil 
• 19799-42-9 3,4-bis(phenyl)thiophene-2,5-dicarboxylic acid 
• 2216-94-6 phenylpropynoic acid ethyl ester 

Downstream Products

• 977-57-1 5-(ethoxycarbonyl)-3,4-diphenylthiophene-2-carboxylic acid 

Relevant articles and documents

Synthesis of Polysubstituted Thiophenes via Base-Induced [2+2+1] Cycloaddition Reaction of Alkynes and Elemental Sulfur

A simple approach to polysubstituted thiophene derivatives is demonstrated. The synthesis is highlighted by the direct [2+2+1] cycloaddition reaction to construct carbon-sulfur and carbon-carbon bonds, without adding oxidizing, reducing and noble metal ag

A process for the preparation of the substituted thiophene

The invention relates to a preparation method of totally-substituted thiophene and belongs to the field of chemical synthesis. The preparation method comprises the following steps: stirring elemental sulfur and a double-molecule alkynyl ketone type compou