1369884-55-8

Basic information

• Product Name: C₁₁H₆Cl₂N₂O
• Synonyms: C₁₁H₆Cl₂N₂O
• CAS NO: 1369884-55-8
• Molecular Weight: 253.087
• Mol File: 1369884-55-8.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: C₁₁H₆Cl₂N₂O(CAS DataBase Reference)
• NIST Chemistry Reference: C₁₁H₆Cl₂N₂O(1369884-55-8)
• EPA Substance Registry System: C₁₁H₆Cl₂N₂O(1369884-55-8)

Safety Data

• Hazardous Substances Data: 1369884-55-8(Hazardous Substances Data)

Upstream product

• 14508-49-7 2-chloropyrazin 
• 24167-52-0 N,N-dimethyl-3-chlorobenzamide 

Relevant articles and documents

A convenient two-step synthesis of 7-aryl-6,7-dihydrothieno[2,3-b]pyrazines from aryl(3-chloropyrazin-2-yl)methanones

An efficient method for the preparation of 7-aryl-6,7-dihydrothieno[2,3-b] pyrazines (3) under mild conditions has been developed. The reaction of aryl(3-chloropyrazin-2-yl)methanones (1), derived from commercially available 2-chloropyrazine, with methylenetriphenylphosphorane in THF at room temperature gave the corresponding 2-(1-arylethenyl)-3-chloropyrazines (2), which were treated with NaSH?nH2O in DMF at room temperature to lead to the desired products (3) in acceptable yields. These products are dehydrogenated with air in refluxing toluene in the presence of a catalytic amount of Pd/C to yield the corresponding 7-arylthieno[2,3-b]pyrazines (4).