97962-70-4

Basic information

• Product Name: 3-Cyclobutene-1,2-dione, 3-chloro-4-(phenylamino)-
• CAS NO: 97962-70-4
• Molecular Formula: C10H6ClNO2
• Molecular Weight: 207.616
• Mol File: 97962-70-4.mol
• Article Data: 2

Chemical Properties

• CAS DataBase Reference: 3-Cyclobutene-1,2-dione, 3-chloro-4-(phenylamino)-(CAS DataBase Reference)
• NIST Chemistry Reference: 3-Cyclobutene-1,2-dione, 3-chloro-4-(phenylamino)-(97962-70-4)
• EPA Substance Registry System: 3-Cyclobutene-1,2-dione, 3-chloro-4-(phenylamino)-(97962-70-4)

Safety Data

• Hazardous Substances Data: 97962-70-4(Hazardous Substances Data)

Upstream product

• 2892-63-9 3,4-Dichlorocyclobut-3-ene-1,2-dione 
• 3768-55-6 N-trimethylsilylaniline 

Relevant articles and documents

Oxocarbons and related compounds, 32 [1]. On the reaction of squaric dichloride and perchlorocyclobutenone with Schiff bases

Squaric dichloride (3) reacts with Schiff bases 5 under mild conditions to give 1: 1 adducts 7. On recrystallisation from alcohols, these adducts are converted to the respective N-(α-alkoxybenzyl)-squaric amide chlorides 8. The reaction has been extended to perchlorocyclobutenone 4. Thus, addition products 14 have been obtained from the reaction of 4 with Schiff bases 5, which, on recrystallisation from alcohols, afforded N-(α-alkoxybenzyl)- substituted 3-amino-2,4,4-trichloro-cyclobuten-1-ones 15. Hydrolysis of the adducts 14 gave the aminotrichlorocyclobutenones 17 in good yield.