97962-48-6

Basic information

• Product Name: 3-Cyclobutene-1,2-dione, 3-chloro-4-[ethyl(3-methylphenyl)amino]-
• CAS NO: 97962-48-6
• Molecular Formula: C13H12ClNO2
• Molecular Weight: 249.697
• Mol File: 97962-48-6.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: 3-Cyclobutene-1,2-dione, 3-chloro-4-[ethyl(3-methylphenyl)amino]-(CAS DataBase Reference)
• NIST Chemistry Reference: 3-Cyclobutene-1,2-dione, 3-chloro-4-[ethyl(3-methylphenyl)amino]-(97962-48-6)
• EPA Substance Registry System: 3-Cyclobutene-1,2-dione, 3-chloro-4-[ethyl(3-methylphenyl)amino]-(97962-48-6)

Safety Data

• Hazardous Substances Data: 97962-48-6(Hazardous Substances Data)

Upstream product

• 2892-63-9 3,4-Dichlorocyclobut-3-ene-1,2-dione 
• 102-27-2 N-ethyl-m-toulidine 

Relevant articles and documents

Oxocarbons and Related Compounds, VIII. - Squaric Amide Chlorides: Simple Methods of their Preparation and Cyclization of Specially Substituted Representatives to Annulated Cyclobutenediones

Squaric dichloride (1c) reacts with a great number of secondary amines and with several primary amines to afford the squaric amide chlorides 4d-z.A further simple method for the preparation of 4a-d, aa-ac has been found in the reaction of 1c with an equimolar amount of the trimethylsilylamines 9a-ac.On using a twofold molar amount of 4-(trimethylsilyl)morpholine (9d), dimorpholinocyclobutenedione (11) has been obtained.Reaction of hexamethyldisilazane (12) with 1c affords 3-amino-4-chloro-3-cyclobutene-1,2-dione (14).The squaric amide chlorides 4m, u-w suffer intramolecular cyclization by the action of AlCl3 to give the annulated cyclobutenediones 17a-d.The analogous cyclization of 4z yields 18 which is characterized by an sevenmembered ring condensed with the cyclobutenedione unit.