79238-60-1

Basic information

• Product Name: diethyl 3,5-dimethylcyclohexa-2,4-dienylphosphonate
• CAS NO: 79238-60-1
• Molecular Weight: 244.271
• Mol File: 79238-60-1.mol

Chemical Properties

• CAS DataBase Reference: diethyl 3,5-dimethylcyclohexa-2,4-dienylphosphonate(CAS DataBase Reference)
• NIST Chemistry Reference: diethyl 3,5-dimethylcyclohexa-2,4-dienylphosphonate(79238-60-1)
• EPA Substance Registry System: diethyl 3,5-dimethylcyclohexa-2,4-dienylphosphonate(79238-60-1)

Safety Data

• Hazardous Substances Data: 79238-60-1(Hazardous Substances Data)

Upstream product

• 589-57-1 diethyl phosphorylchloridite 
• 20109-03-9 3,5-dimethylhex-4-en-1-yn-3-ol 

Relevant articles and documents

Some Rearrangements of Unsaturated Phosphonate Esters

α-Hydroxyalk-2-enylphosphonates undergo Claisen orthoester rearrangement on heating with orthoesters, and their arylsulphenates undergo -sigmatropic rearrangement to give 3-arylsulphinylalk-1-enylphosphonates.The addition of allyloxide anion to the central carbon of the allene Me2C=C=CHP(O)(OEt)2 is followed by rapid Claisen rearrangement of the resulting allylic carbanion to give the two possible β-ketoalkylphosphonates.Allenic phosphonates of the general formula R1R2C=CHnCR3=C=CHP(O)(OEt)2 have been prepared: when R1 = R2 = H, R3 = Me, and n = 2, Cope rearrangement occurs to give isomeric dienes; when R1,R2,R3 = Me and n = 0, hydride shift gives a triene which then cyclises to a cyclohexadiene; when R1 = Me, R2 = H, R3 = H or Me, and n = 0, the diene component can be used in Diels-Alder reactions.