137121-51-8

Basic information

• Product Name: retinol acetate radical anion
• CAS NO: 137121-51-8
• Molecular Weight: 328.495
• Mol File: 137121-51-8.mol
• Article Data: 6

Chemical Properties

• CAS DataBase Reference: retinol acetate radical anion(CAS DataBase Reference)
• NIST Chemistry Reference: retinol acetate radical anion(137121-51-8)
• EPA Substance Registry System: retinol acetate radical anion(137121-51-8)

Safety Data

• Hazardous Substances Data: 137121-51-8(Hazardous Substances Data)

Upstream product

• 127-47-9 Retinol acetate 
• 127-47-9 Acetic acid (2E,4E,6E,8Z)-3,7-dimethyl-9-(2,6,6-trimethyl-cyclohex-1-enyl)-nona-2,4,6,8-tetraenyl ester 
• 100183-85-5 [(E)-3-Methyl-5-(2,6,6-trimethyl-cyclohex-1-enyl)-pent-2-en-4-ynyl]-triphenyl-phosphonium; chloride 
• 100183-86-6 [(2E,4Z)-3-Methyl-5-(2,6,6-trimethyl-cyclohex-1-enyl)-penta-2,4-dienyl]-triphenyl-phosphonium; chloride 
• 137047-33-7 1-[(E)-5-(1-Methoxy-1-methyl-ethoxy)-3-methyl-pent-3-en-1-ynyl]-2,2,6-trimethyl-cyclohexanol 
• 80713-62-8 5-(1-methoxy-1-methylethoxy)-3-methyl-3E-penten-1-yne 
• 74976-66-2 3-methyl-5-(2,6,6-trimethyl-cyclohex-1-enyl)-pent-2-en-4-yn-1-ol 
• 2408-37-9 2,2,6-trimethylcyclohexan-1-one 
• 26586-02-7 (E)-4-acetoxy-2-methylcrotonaldehyde 
• 137121-52-9 (7Z,11Z)-Vitamin A 
• 75-36-5 acetyl chloride 
• 414871-77-5 C₃₆H₄₈O₆S₂ 
• 53282-28-3 [(2E,4E)-3-methyl-5-(2,6,6-trimethylcyclohex-1-en-1-yl)penta-2,4-dienyl]triphenylphosphonium chloride 

Downstream Products

• 137121-50-7 7-cis-retinyl acetate 
• 137121-51-8 Acetic acid (2E,4Z,6E,8Z)-3,7-dimethyl-9-(2,6,6-trimethyl-cyclohex-1-enyl)-nona-2,4,6,8-tetraenyl ester 
• 137121-54-1 Hexadecanoic acid (2E,4Z,6E,8Z)-3,7-dimethyl-9-(2,6,6-trimethyl-cyclohex-1-enyl)-nona-2,4,6,8-tetraenyl ester 
• 137121-53-0 Hexadecanoic acid (2E,4E,6E,8Z)-3,7-dimethyl-9-(2,6,6-trimethyl-cyclohex-1-enyl)-nona-2,4,6,8-tetraenyl ester 
• 127-47-9 Retinol acetate 
• 137121-52-9 (7Z,11Z)-Vitamin A 
• 6018-74-2 (7Z)-Vitamin A 

Relevant articles and documents

Process for preparation of allyl sulfone derivatives and intermediates for the preparation

The present invention relates to a process for producing an allyl sulfone derivative represented by the formula (3): wherein Ar is an optionally substituted aryl group, and the corrugated line means either one of E/Z geometrical isomers, or a mixture thereof, which is an intermediate for producing vitamin A, which process is characterized by reacting an aryl sulfinic acid or a salt thereof represented by the formula (2): ArSO2M (2) wherein Ar is as defined above, and M is hydrogen atom, sodium atom or potassium atom, with an allyl halide derivative represented by the formula (1): wherein X is a halogen atom, and Ar and the corrugated line are as defined above.

Preparation of (7Z) - and (7Z,11Z) - Vitamin A

An efficient access to (7Z)- and (7Z,11Z)-vitamin A is described. Following the addition of a C6-acetylenic building block to 2,6,6-trimethylcyclohexanone (2), dehydration of the tert. alcohol 3 and formation of the C15-Wittig salt, the (7Z)-geometry was introduced by partial hydrogenation of the triple bond over Raney-nickel. Following Wittig reaction with (E)-2-methyl-4-acetoxy-2-butenal gave a mixture of the title compounds 8 and 9 which could easily be separated.

Transient Phenomena in the Pulse Radiolysis of Retinyl Polyenes. 1. Radical Anions

The spectra and kinetics of formation and decay of radical anions of a number of retinyl polyenes have been studied in methanol and 2-propanol at room temperature, using pulse radiolysis and kinetic spectrophotometry.The bimolecular rate constants for the attachment of solvated electrons, e-MeOH, to the retinyl polyenes are in the diffusion-controlled limit (8.6 x 109-1.6 x 1010 M-1 s-1).The radical anions of retinol and retinol acetate have their spectral maxima at 370-390 nm, and undergo decay very slowly with second-order kinetics.On the other hand, the radical anions of retinal, retinal n-butylamine Schiff base, and retinoic acid/ester have spectral maxima at 430-510 nm, and decay by first-order kinetics in methanol with rate constants in the range 1 x 104-1 x 106 s-1.The decay rates of radical anions of retinal and retinoic acid/ester become considerably longer on going from methanol to less acidic alcohol, 2-propanol, suggesting that protonation by solvent is the major mode of their decay in protic media.In the case of retinal Schiff base, an additional slow process with bimolecular rate constant 9.0 x 107 M-1 s-1 im methanol is observed for the formation of radical anion and is ascribed to the electron-transfer reaction from the methanol radical, .CH2OH.