128759-92-2

Basic information

• Product Name: Phosphonic acid, [(1E,4E)-3-methyl-5-(2,6,6-trimethyl-1-cyclohexen-1-yl)-1,4-pentadienyl] -, diethyl ester
• CAS NO: 128759-92-2
• Molecular Formula: C19H33O3P
• Molecular Weight: 340.443
• Mol File: 128759-92-2.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: Phosphonic acid, [(1E,4E)-3-methyl-5-(2,6,6-trimethyl-1-cyclohexen-1-yl)-1,4-pentadienyl] -, diethyl ester(CAS DataBase Reference)
• NIST Chemistry Reference: Phosphonic acid, [(1E,4E)-3-methyl-5-(2,6,6-trimethyl-1-cyclohexen-1-yl)-1,4-pentadienyl] -, diethyl ester(128759-92-2)
• EPA Substance Registry System: Phosphonic acid, [(1E,4E)-3-methyl-5-(2,6,6-trimethyl-1-cyclohexen-1-yl)-1,4-pentadienyl] -, diethyl ester(128759-92-2)

Safety Data

• Hazardous Substances Data: 128759-92-2(Hazardous Substances Data)

Upstream product

• 1660-94-2 Tetraethyl methylenediphosphonate 
• 56013-05-9 (RS)-(E)-2-methyl-4-(2',6',6'-trimethyl-1'-cyclohexenyl)-3-butenal 
• 79-77-6 (E)-β-ionone 
• 58689-13-7 2-Methyl-2-[2-(2,6,6-trimethyl-1-cyclohexen-1-yl)ethenyl]oxirane 

Downstream Products

• 79-81-2 retinyl palmitate 
• 3899-20-5 ethyl (all-E)-retinoate 
• 128759-88-6 [(2E,4E)-3-Methyl-5-(2,6,6-trimethyl-cyclohex-1-enyl)-penta-2,4-dienyl]-phosphonic acid diethyl ester 

Relevant articles and documents

An expedient route to a versatile intermediate for the stereoselective synthesis of all-trans-retinoic acid and beta-carotene

Base-catalyzed isomerization of vinyl phosphonate 5 afforded the corresponding allylic phosphonate (6) as the sole product. Horner-Emmons olefination of ethyl trans-3-methyl-4-oxo-2-butenoate with the ylide derived from 6 concludes a facile synthesis of t