119930-16-4

Basic information

• Product Name: (E)-4-(Triphenyl-λ⁵-phosphanylidene)-pent-2-enedioic acid diethyl ester
• Synonyms: (E)-4-(Triphenyl-λ⁵-phosphanylidene)-pent-2-enedioic acid diethyl ester
• CAS NO: 119930-16-4
• Molecular Weight: 446.483
• Mol File: 119930-16-4.mol
• Article Data: 3

Chemical Properties

• CAS DataBase Reference: (E)-4-(Triphenyl-λ⁵-phosphanylidene)-pent-2-enedioic acid diethyl ester(CAS DataBase Reference)
• NIST Chemistry Reference: (E)-4-(Triphenyl-λ⁵-phosphanylidene)-pent-2-enedioic acid diethyl ester(119930-16-4)
• EPA Substance Registry System: (E)-4-(Triphenyl-λ⁵-phosphanylidene)-pent-2-enedioic acid diethyl ester(119930-16-4)

Safety Data

• Hazardous Substances Data: 119930-16-4(Hazardous Substances Data)

Upstream product

• 73178-43-5 (E)-diethyl glutaconate 
• 1034-39-5 dibromotriphenylphosphorane 
• 1099-45-2 ethyl (triphenylphosphoranylidene)acetate 
• 623-47-2 propynoic acid ethyl ester 

Downstream Products

• 4105-92-4 triethyl benzene-1,3,5-tricarboxylate 
• 14230-18-3 triethyl benzene-1,2,4-tricarboxylate 
• 1099-45-2 ethyl (triphenylphosphoranylidene)acetate 
• 623-47-2 propynoic acid ethyl ester 
• 86448-41-1 C₂₇H₂₆⁽²⁾HO₄P 
• 24393-52-0 ethyl (E)-3-(4-chlorophenyl)prop-2-enoate 
• 85345-69-3 4'-Chloro-biphenyl-2,4,6-tricarboxylic acid triethyl ester 

Relevant articles and documents

Phosphonium ylide-catalyzed cyclotrimerization of ethyl propynoate

The cyclotrimerization of ethyl propynoate (2) to yield aromatic triesters is shown to proceed via consecutive [2 + 2] cycloadditions of ethoxycarbonylmethylenetriphenylphosphonium ylide (1) to three moles of (2), followed by cyclization and elimination o

SYNTHESIS AND FRAGMENTATION-CONDENSATION REACTIONS OF 1,3-DIETHOXYCARBONYLALLYLIDENETRIPHENYLPHOSPHONIUM YLIDE

Alkylidenephosphonium ylides with ethoxycarbonyl substituents in the α-position fragment in a retro-Michael fashion during condensation with aldehydes.