21405-61-8

Basic information

• Product Name: Propanedioic acid, [(4-methoxyphenyl)methylene]-
• CAS NO: 21405-61-8
• Molecular Formula: C11H10O5
• Molecular Weight: 222.197
• Mol File: 21405-61-8.mol
• Article Data: 11

Chemical Properties

• CAS DataBase Reference: Propanedioic acid, [(4-methoxyphenyl)methylene]-(CAS DataBase Reference)
• NIST Chemistry Reference: Propanedioic acid, [(4-methoxyphenyl)methylene]-(21405-61-8)
• EPA Substance Registry System: Propanedioic acid, [(4-methoxyphenyl)methylene]-(21405-61-8)

Safety Data

• Hazardous Substances Data: 21405-61-8(Hazardous Substances Data)

Upstream product

• 141-82-2 malonic acid 
• 123-11-5 4-methoxy-benzaldehyde 
• 7443-25-6 dimethyl 2-(4-methoxybenzylidene)malonate 
• 64-17-5 ethanol 
• 591-31-1 3-methoxy-benzaldehyde 
• 836-41-9 p-methoxybenzylidene-phenylamine 
• 107-85-7 1-amino-3-methylbutane 

Downstream Products

• 21405-62-9 2-(4-methoxybenzyl)malonic acid 
• 861545-92-8 bromo-(4-methoxy-benzyl)-malonic acid 
• 19897-63-3 N-methyltyrosine 
• 52939-33-0 N,O-diMe-Tyr 
• 220658-18-4 2-(4-methoxybenzylidene)malonyl chloride 
• 943-89-5 (E)-3-(4-methoxyphenyl)acrylic acid 
• 5678-45-5 3-amino-3-(4-methoxyphenyl)propionic acid 
• 124-38-9 carbon dioxide 
• 830-09-1 3-(4'-methoxyphenyl)propenoic acid 

Relevant articles and documents

Synthesis of a new urea derivative: A dual-functional organocatalyst for Knoevenagel condensation in water

A phenylalanine-urea compound-catalyzed Knoevenagel condensation in water is reported. Various aldehydes and active methylene compounds undergo condensation at room temperature to give the desired products in high yields. The mechanism of the condensation of aldehydes with Meldrum's acid catalyzed by the novel urea derivative is also disclosed.

Knoevenagel condensation catalyzed by chemo-selective Ni-nanoparticles in neutral medium

Recyclable Ni-nanoparticles provides an efficient, economic and rapid method for catalyzing Knoevenagel condensation of aldehydes with an active methylene compound at room temperature. The method offers high yield preferably in case of aromatic aldehydes and proceed well in neutral medium. This method provides a wide range of substrate applicability and simple workup procedure. The products need no further purification and the process is environmentally benign.

A one-pot synthesis of 3-amino-3-arylpropionic acids

3-Aminopropionic acids (β-amino acids) are biologically active compounds of interest in medicinal and pharmaceutical chemistry. Twenty-one 3-amino-3-arylpropionic acids were synthesized via a facile one-pot synthesis. In addition, a series of mechanistic studies have been performed to optimize the production of these β-amino acids. The reaction mechanism of this one-pot synthesis of β-amino acids, as well as the electronic effect of para-substitution and the influence of solvent polarity on the proposed reaction mechanism are discussed.