137121-55-2

Basic information

• Product Name: Acetic acid (2E,4Z,6Z,8E)-3,7-dimethyl-9-(2,6,6-trimethyl-cyclohex-1-enyl)-nona-2,4,6,8-tetraenyl ester
• Synonyms: Acetic acid (2E,4Z,6Z,8E)-3,7-dimethyl-9-(2,6,6-trimethyl-cyclohex-1-enyl)-nona-2,4,6,8-tetraenyl ester
• CAS NO: 137121-55-2
• Molecular Weight: 328.495
• Mol File: 137121-55-2.mol
• Article Data: 8

Chemical Properties

• CAS DataBase Reference: Acetic acid (2E,4Z,6Z,8E)-3,7-dimethyl-9-(2,6,6-trimethyl-cyclohex-1-enyl)-nona-2,4,6,8-tetraenyl ester(CAS DataBase Reference)
• NIST Chemistry Reference: Acetic acid (2E,4Z,6Z,8E)-3,7-dimethyl-9-(2,6,6-trimethyl-cyclohex-1-enyl)-nona-2,4,6,8-tetraenyl ester(137121-55-2)
• EPA Substance Registry System: Acetic acid (2E,4Z,6Z,8E)-3,7-dimethyl-9-(2,6,6-trimethyl-cyclohex-1-enyl)-nona-2,4,6,8-tetraenyl ester(137121-55-2)

Safety Data

• Hazardous Substances Data: 137121-55-2(Hazardous Substances Data)

Upstream product

• 127-47-9 Retinol acetate 
• 76985-04-1 9-cis-13-trans-dimethyl-7-(1,1,5-trimethyl-5-cyclohexen-6-yl)-7,9,11,13-nonatetraene-15-nitrile 
• 23352-58-1 (2E,4Z,6Z,8E)-3,7-Dimethyl-9-(2,6,6-trimethyl-cyclohex-1-enyl)-nona-2,4,6,8-tetraenylideneamine 
• 137068-84-9 2-((1E,3Z)-6,6-Dibromo-3-methyl-hexa-1,3,5-trienyl)-1,3,3-trimethyl-cyclohexene 
• 76929-15-2 (5Z,7E)-6-Methyl-8-(2,6,6-trimethyl-cyclohex-1-enyl)-octa-5,7-dien-3-yn-2-ol 
• 67711-05-1 9-cis,11-cis-retinal 
• 54226-17-4 (2Z,4E)-3-methyl-5-[2,6,6-trimethylcyclohex-1-enyl]penta-2,4-dienal 
• 93380-02-0 (9Z,11Z)-Retinol 
• 75-36-5 acetyl chloride 
• 100183-85-5 [(E)-3-Methyl-5-(2,6,6-trimethyl-cyclohex-1-enyl)-pent-2-en-4-ynyl]-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 

Downstream Products

• 127-47-9 Retinol acetate 
• 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 
• 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 
• 137121-51-8 Acetic acid (2E,4Z,6E,8Z)-3,7-dimethyl-9-(2,6,6-trimethyl-cyclohex-1-enyl)-nona-2,4,6,8-tetraenyl ester 
• 137121-50-7 7-cis-retinyl acetate 
• 137047-36-0 Acetic acid (1S,6S,7R,8S)-2,6-dimethyl-8-(2,6,6-trimethyl-cyclohex-1-enyl)-bicyclo[4.2.0]octa-2,4-dien-7-ylmethyl ester 
• 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.

Ionic Photodissociation of Polyenes via a Highly Polarized Singlet Excited State

Several polyene acetates and polyene methyl ether were prepared.Upon direct excitation these polyenes undergo ionic photodissociation from their singlet excited states.Triplet-sensitization experiments on these polyenes revealed that the ionic photodissociation process is restricted to singlet excited states.The rationale put forward is that the polyene chromophore undergoes charge separation/polarization in the singlet excited state, which leads to ionic photodissociation.

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.