28694-04-4

Basic information

• Product Name: tetraethyl 2,2'-(1,3-phenylenebis(methanylylidene))dimalonate
• Synonyms: tetraethyl 2,2'-(1,3-phenylenebis(methanylylidene))dimalonate
• CAS NO: 28694-04-4
• Molecular Weight: 418.444
• Mol File: 28694-04-4.mol
• Article Data: 2

Chemical Properties

• CAS DataBase Reference: tetraethyl 2,2'-(1,3-phenylenebis(methanylylidene))dimalonate(CAS DataBase Reference)
• NIST Chemistry Reference: tetraethyl 2,2'-(1,3-phenylenebis(methanylylidene))dimalonate(28694-04-4)
• EPA Substance Registry System: tetraethyl 2,2'-(1,3-phenylenebis(methanylylidene))dimalonate(28694-04-4)

Safety Data

• Hazardous Substances Data: 28694-04-4(Hazardous Substances Data)

Upstream product

• 626-19-7 Isophthalaldehyde 
• 105-53-3 diethyl malonate 

Downstream Products

• 854850-10-5 (4-amino-m-phenylenedimethylene)-di-malonic acid tetraethyl ester 
• 906648-15-5 tetraethyl 2,2'-(1,3-phenylenebis(methan-1-yl-ylidene))dimalonate 
• 681463-09-2 (4-nitro-m-phenylenedimethylene)-di-malonic acid tetraethyl ester 
• 40395-70-8 tetraethyl 2,2′-(1,3-phenylenebis(methylene))dimalonate 

Relevant articles and documents

Preparation method of 1,4- dibenzylidene malonic ester (by machine translation)

The preparation method comprises the following 1,4 - steps: dissolving the terephthalaldehyde and the malonate of the formula in 1 an organic solvent; reacting 2 under the action of a catalyst; and after the reaction is 20 - 80 °C complete, the method comprises the following 3 steps 1,4 - reacting with organic acid and organic base; and reacting the reaction route as follows. In-flight vehicle R1 Sum-up table R2 An alkyl, alkenyl or 1 - 18 alkynyl group is independently selected from alkyl, alkenyl or alkynyl groups containing from about. The method provided by the invention is simple in process, short in flow, mild in reaction conditions, high in conversion rate, and capable of recycling and recycling auxiliary materials such as solvents. (by machine translation)