89968-05-8

Basic information

• Product Name: 2-(2-carboxylatophenyl)ethynyltrimethylammonium
• CAS NO: 89968-05-8
• Molecular Weight: 203.241
• Mol File: 89968-05-8.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: 2-(2-carboxylatophenyl)ethynyltrimethylammonium(CAS DataBase Reference)
• NIST Chemistry Reference: 2-(2-carboxylatophenyl)ethynyltrimethylammonium(89968-05-8)
• EPA Substance Registry System: 2-(2-carboxylatophenyl)ethynyltrimethylammonium(89968-05-8)

Safety Data

• Hazardous Substances Data: 89968-05-8(Hazardous Substances Data)

Upstream product

• 89651-28-5 3-dimethylaminomethyleneisobenzofuran-1(3H)-one 
• 89968-08-1 3-isobenzofuran-1(3H)-one 
• 87-41-2 2-benzofuran-1(3H)-one 
• 4637-24-5 N,N-dimethyl-formamide dimethyl acetal 

Relevant articles and documents

Central Nervous System Active Compounds. XII. The Synthesis and Properties of 3-Dimethylaminomethylene Phthalides

Isobenzofuran-1(3H)-one (phthalide), and its derivatives react with dimethylformamide dimethyl acetal to form 3-dimethylaminomethyleneisobenzofuran-1-one and minor amounts of the corresponding internal betaine 2-(2-carboxylatophenyl)ethynyltrimethylammonium.The use of the t-butoxy-bis(dimethylamino)methane allows the isolation of the corresponding aminal, which readily loses dimethylamine on recrystallization.The dimethylamino group in the title compounds is replaceable by amino, hydrazino or hydroxy groups in mildly acidic solution. 3-Formylphthalide, the tautomer of the last-named product, could be isolated as the 2,4-dinitrophenylhydrazone.