133031-78-4

Basic information

• Product Name: dipotassium 2,4-dimethoxybenzylidenemalonate
• Synonyms: dipotassium 2,4-dimethoxybenzylidenemalonate
• CAS NO: 133031-78-4
• Molecular Weight: 328.404
• Mol File: 133031-78-4.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: dipotassium 2,4-dimethoxybenzylidenemalonate(CAS DataBase Reference)
• NIST Chemistry Reference: dipotassium 2,4-dimethoxybenzylidenemalonate(133031-78-4)
• EPA Substance Registry System: dipotassium 2,4-dimethoxybenzylidenemalonate(133031-78-4)

Safety Data

• Hazardous Substances Data: 133031-78-4(Hazardous Substances Data)

Upstream product

• 7324-86-9 ethyl 3-(2,4-dimethoxyphenyl)-2-ethoxycarbonyl-2-propenoate 

Downstream Products

• 682805-95-4 2,4-dimethoxybenzylidenemalonic acid 
• 35924-44-8 6-methoxycoumarin-3-carboxylic acid 

Relevant articles and documents

A One-Pot Synthesis of Coumarins from Dipotassium O-Methoxybenzylidenemalonates

o-Methoxybenzylidenemalonates 1, which are available from o-methoxybenzaldehydes and diethylmalonate, were hydrolysed to the dipotassium malonates 2.Treatment of the salts 2 with trifluoroacetic acid-trifluoroacetic anhydride gave the title coumarins by a demethylative ring-closure reaction in 60-80percent yield.