107408-46-8

Basic information

• Product Name: ethyl 9-chloro-5-methyl-3-oxo-2-(triphenylphosphoranylidene)-4(E)-nonenoate
• Synonyms: ethyl 9-chloro-5-methyl-3-oxo-2-(triphenylphosphoranylidene)-4(E)-nonenoate
• CAS NO: 107408-46-8
• Molecular Weight: 507.009
• Mol File: 107408-46-8.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: ethyl 9-chloro-5-methyl-3-oxo-2-(triphenylphosphoranylidene)-4(E)-nonenoate(CAS DataBase Reference)
• NIST Chemistry Reference: ethyl 9-chloro-5-methyl-3-oxo-2-(triphenylphosphoranylidene)-4(E)-nonenoate(107408-46-8)
• EPA Substance Registry System: ethyl 9-chloro-5-methyl-3-oxo-2-(triphenylphosphoranylidene)-4(E)-nonenoate(107408-46-8)

Safety Data

• Hazardous Substances Data: 107408-46-8(Hazardous Substances Data)

Upstream product

• 10226-30-9 6-chloro-2-hexanone 
• 78980-76-4 diethyl <2,4-dioxo-4-ethoxy-3-(triphenylphosphoranylidene)butyl>-phosphonate 

Downstream Products

• 107408-65-1 4-(1-Methyl-cyclopentyl)-3-oxo-2-(triphenyl-λ⁵-phosphanylidene)-butyric acid ethyl ester 
• 107408-47-9 ethyl 9-iodo-5-methyl-3-oxo-2-(triphenylphosphoranylidene)-4(E)-nonenoate 

Relevant articles and documents

Lithium-Halogen Exchange-Initiated Cyclization Reactions. 3. Intramolecular Conjugate Addition Reactions of Unsaturated Acylphosphoranes

The lithium-halogen exchange-initiated intramolecular conjugate addition reactions of some model unsaturated acylphosphoranes have been examined.The effects of halide type, chain length, and acceptor substitution pattern on the feasibility of ring construction were studied.The lithium-bromine exchange reactions in two 2-bromooaryl acceptors were found to be too slow, relative to competing side reactions, to allow practical carbocycle syntheses while 3-,4-,5-, and 6-membered carbocycles are formed in good to excellent yields from precursors that are vinyl and saturated primary iodides.Highly efficient intramolecular conjugate addition reactions to β,β-disubstituted acceptor units are possible, and intermediate anions from intramolecular conjugate addition reactions are readily captured with electrophiles.