39668-33-2

Basic information

• Product Name: (+/-)-7-hydroxy-3.7-dimethyl-1-(2.2.6-trimethyl-cyclohexen-⁽⁶⁾-yl)-nonatetraene-(1.3.5.8)
• Synonyms: (+/-)-7-hydroxy-3.7-dimethyl-1-(2.2.6-trimethyl-cyclohexen-⁽⁶⁾-yl)-nonatetraene-(1.3.5.8)
• CAS NO: 39668-33-2
• Molecular Weight: 286.458
• Mol File: 39668-33-2.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: (+/-)-7-hydroxy-3.7-dimethyl-1-(2.2.6-trimethyl-cyclohexen-⁽⁶⁾-yl)-nonatetraene-(1.3.5.8)(CAS DataBase Reference)
• NIST Chemistry Reference: (+/-)-7-hydroxy-3.7-dimethyl-1-(2.2.6-trimethyl-cyclohexen-⁽⁶⁾-yl)-nonatetraene-(1.3.5.8)(39668-33-2)
• EPA Substance Registry System: (+/-)-7-hydroxy-3.7-dimethyl-1-(2.2.6-trimethyl-cyclohexen-⁽⁶⁾-yl)-nonatetraene-(1.3.5.8)(39668-33-2)

Safety Data

• Hazardous Substances Data: 39668-33-2(Hazardous Substances Data)

Upstream product

• 1150-17-0 (E)-6-methyl-8-(2,6,6-trimethylcyclohex-1-en-1-yl)oct-5-en-2-one 
• 502-61-4 (E,E)-alpha-farnesene 
• 17974-57-1 (3E,5E,7E)-6-methyl-8-(2,6,6-trimethyl-1-cyclohexenyl)-3,5,7-octatriene-2-one 
• 3536-96-7 vinylmagnesium chloride 

Downstream Products

• 127-47-9 Retinol acetate 
• 68-26-8 RETINOL 

Relevant articles and documents

Preparation method of vitamin A and vitamin A ester

The invention provides a novel method for preparing vitamin A and vitamin A ester with farnesene as a raw material. The method comprises the following steps: reacting farnesene with acetoacetate underthe action of a catalyst to obtain farnesyl keto ester; carrying out a cyclization reaction and a dehydrogenation reaction on farnesene acetone, and then reacting a reaction product with vinyl magnesium halide to generate vinyl alcohol; carrying out a rearrangement reaction on vinyl alcohol to obtain vitamin A; and subjecting the vitamin A to an esterification reaction to obtain the vitamin A ester. The method avoids the defects of the existing processes, and the process line of the method is economical and effective.