144153-01-5

Basic information

• Product Name: 2,3,8,9-tetraphenyl<1,2-b;5,6-b'>dipyrazine
• CAS NO: 144153-01-5
• Molecular Weight: 536.635
• Mol File: 144153-01-5.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: 2,3,8,9-tetraphenyl<1,2-b;5,6-b'>dipyrazine(CAS DataBase Reference)
• NIST Chemistry Reference: 2,3,8,9-tetraphenyl<1,2-b;5,6-b'>dipyrazine(144153-01-5)
• EPA Substance Registry System: 2,3,8,9-tetraphenyl<1,2-b;5,6-b'>dipyrazine(144153-01-5)

Safety Data

• Hazardous Substances Data: 144153-01-5(Hazardous Substances Data)

Upstream product

• 133546-47-1 naphtho<1,2-c:5,6-c'>bis<1,2,5>thiadiazole 
• 51772-73-7 1,2,5,6-naphthalenetetramine dihydrochloride 
• 134-81-6 benzil 

Relevant articles and documents

Preparation of 1,2,3-Naphthalenetriamine, 1,2,5,6- and 1,2,7,8-Naphthalenetetramine, and 5,6,7,8-Quinolinetetramine and -Isoquinolinetetramine by Reduction of the Fused 1,2,5-Thiadiazole Ring

The two fused 1,2,5-thiadiazole-rings of naphthalenes 1a and 1b, quinoline 2a, and isoquinoline 2b were reduced with tin and concentrated hydrochloric acid in refluxing dioxane, giving the expected 1,2,5,6-anphthalenetetramine (4a) and 1,2,7,8-tetramine derivative 4b, 5,6,7,8-quinolinetetramine (15a) and isoquinoline analogue 15b in moderate yields.Partially reduced diamine 5 was formed as a by-product in the reduction of 1a.The expected 1,2,3,4-naphthalenetetramine (4c) was not obtained in the reduction of 1c at room temperature and the 1,2,3-triamine 8 was formed in 27percent yield.The intermediary formation of 4c was confirmed by acetylating the crude reduction mixture of 1c, giving tetraacetyl derivative 11.The reduction of naphthotristhiadiazole 3 afforded 4,5-diamine 16 in 44percent yield.Polyamines 4a-b, 8, 15a-b, and 16, were obtained as their hydrochloride(s).