138893-54-6

Basic information

• Product Name: Acetic acid, trifluoro-, 3-methyl-5-(2,6,6-trimethyl-3-oxo-1-cyclohexen-1-yl)-2,4-pentadienyl ester, (E,E)-
• CAS NO: 138893-54-6
• Molecular Formula: C17H21F3O3
• Molecular Weight: 330.347
• Mol File: 138893-54-6.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: Acetic acid, trifluoro-, 3-methyl-5-(2,6,6-trimethyl-3-oxo-1-cyclohexen-1-yl)-2,4-pentadienyl ester, (E,E)-(CAS DataBase Reference)
• NIST Chemistry Reference: Acetic acid, trifluoro-, 3-methyl-5-(2,6,6-trimethyl-3-oxo-1-cyclohexen-1-yl)-2,4-pentadienyl ester, (E,E)-(138893-54-6)
• EPA Substance Registry System: Acetic acid, trifluoro-, 3-methyl-5-(2,6,6-trimethyl-3-oxo-1-cyclohexen-1-yl)-2,4-pentadienyl ester, (E,E)-(138893-54-6)

Safety Data

• Hazardous Substances Data: 138893-54-6(Hazardous Substances Data)

Upstream product

• 72008-35-6 5-(2,6,6-trimethyl-3-oxo-1-cyclohexen-1-yl)-3-methyl-3-hydroxy-1,4-pentadiene 

Relevant articles and documents

Preparation of canthaxanthin and astaxanthin

A process for preparing canthaxanthin (Ia) and astaxanthin (Ib) of the formula I STR1 where R is H (a) or OH (b), comprises reacting a tertiary alcohol of the formula II STR2 where R is H (a) or OH (b), with trifluoroacetic acid, reacting the resulting novel trifluoroacetate of the formula III STR3 with triphenylphosphine, and reacting the resulting novel triphenylphosphonium trifluoroacetate of the formula IV STR4 with 2,7-dimethyl-2,4,6-octatriene-1,8-dial under the conditions of a Wittig synthesis. The present invention also relates to the novel trifluoroacetates of the formula III and the corresponding triphenylphosphonium trifluoroacetates of the formula IV.