21619-12-5

Basic information

• Product Name: 3-ethoxy-4-(2-oxocyclohexyl)cyclobut-3-ene-1,2-dione
• Synonyms: 3-ethoxy-4-(2-oxocyclohexyl)cyclobut-3-ene-1,2-dione
• CAS NO: 21619-12-5
• Molecular Weight: 222.241
• Mol File: 21619-12-5.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: 3-ethoxy-4-(2-oxocyclohexyl)cyclobut-3-ene-1,2-dione(CAS DataBase Reference)
• NIST Chemistry Reference: 3-ethoxy-4-(2-oxocyclohexyl)cyclobut-3-ene-1,2-dione(21619-12-5)
• EPA Substance Registry System: 3-ethoxy-4-(2-oxocyclohexyl)cyclobut-3-ene-1,2-dione(21619-12-5)

Safety Data

• Hazardous Substances Data: 21619-12-5(Hazardous Substances Data)

Upstream product

• 6651-36-1 1-(Trimethylsilyloxy)cyclohexene 
• 5231-87-8 3,4-diethoxy-3-cyclobuten-1,2-dione 

Relevant articles and documents

Synthesis of Squaric Acid Derivatives by Lewis Acid-catalysed Reaction of its Dichloride, Methyl Ester Chloride, Diethylamide Chloride, and Ethyl Diester with Unsaturated Organosilanes: New Method for C-C Bond Formation on Cyclobutenedione

The squaric acid family of derivatives, e.g. dichloride 2, methyl ester chloride 3, diethyl amide chloride 4, and ethyl diester 5, reacted with a variety of unsaturated organosilanes 6 in the presence of a catalyst, typically titanium tetrachloride, at -7