321558-46-7

Basic information

• Product Name: Phosphonic acid, [(1E)-2-(3,4-dimethoxyphenyl)ethenyl]-, diethyl ester
• CAS NO: 321558-46-7
• Molecular Formula: C14H21O5P
• Molecular Weight: 300.28700
• Mol File: 321558-46-7.mol
• Article Data: 2

Chemical Properties

• Boiling Point: 414.2±45.0 °C(Predicted)
• Density: 1.134±0.06 g/cm3(Predicted)
• CAS DataBase Reference: Phosphonic acid, [(1E)-2-(3,4-dimethoxyphenyl)ethenyl]-, diethyl ester(CAS DataBase Reference)
• NIST Chemistry Reference: Phosphonic acid, [(1E)-2-(3,4-dimethoxyphenyl)ethenyl]-, diethyl ester(321558-46-7)
• EPA Substance Registry System: Phosphonic acid, [(1E)-2-(3,4-dimethoxyphenyl)ethenyl]-, diethyl ester(321558-46-7)

Safety Data

• Hazardous Substances Data: 321558-46-7(Hazardous Substances Data)

Upstream product

• 120-14-9 3,4-dimethoxy-benzaldehyde 
• 3095-95-2 diethylphosphonoacetic acid 
• 873061-56-4 (E)-2-diethoxyphosphoryl-3-(3,4-dimethoxyphenyl)acrylic acid 
• 1660-94-2 Tetraethyl methylenediphosphonate 

Downstream Products

• 321558-48-9 [(E)-2-(3,4-Dimethoxy-phenyl)-vinyl]-phosphonic acid monoethyl ester 
• 872426-21-6 [2-(3,4-dimethoxy-phenyl)-vinyl]-phosphonothioic acid S-(2-acetylamino-ethyl) ester O-ethyl ester 

Relevant articles and documents

Knoevenagel reaction of diethylphosphonoacetic acid: A facile route to diethyl (E)-2-arylvinylphosphonates

Knoevenagel reaction of aromatic aldehydes or α-substituted aliphatic aldehydes with diethylphosphonoacetic acid leads to the formation of 3-substituted-2-(diethoxyphosphoryl)acrylic acids. Decarboxylation of the resulting (E)-3-aryl-2-(diethoxyphosphoryl)acrylic acids afforded diethyl (E)-2-arylvinylphosphonates. Direct synthesis of diethyl vinylphosphonates from some aromatic aldehydes and formaldehyde is also reported. Georg Thieme Verlag Stuttgart.