73892-47-4

Upstream product

• 108-05-4 vinyl acetate 
• 14398-34-6 4-(3-hydroxy-2,6,6-trimethylcyclohex-1-enyl)but-3-en-2-one 
• 73925-68-5 (-)-(4R,5S,6S)-4,5-Epoxy-4,5-dihydro-α-ionon 
• 108-24-7 acetic anhydride 
• 71629-13-5 (-)-(R)-4-hydroxy-β-ionone 
• 14398-36-8 (3E)-4-[(S)-2,6,6-trimethylcyclohex-2-enyl]but-3-en-2-one 

Downstream Products

• 71629-13-5 (-)-(R)-4-hydroxy-β-ionone 

Relevant academic research and scientific papers

Facile lipase catalysed syntheses of (S)-(+)-4-hydroxy-β-ionone and (S)-(+)-4-hydroxy-β-damascone: Chiral flavorants and synthons

Enantioselective syntheses of (S)-(+)-4-hydroxy-β-ionone and (S)-(+)-4-hydroxy-β-damascone have been achieved through pig pancreatic lipase catalysed trans-esterification. These molecules find utility as constituent in fruit-type fragrance and flavor form

2. Synthese von (-)-(R)-4-Hydroxy-β-ionon und (-)-(5R,6S)-5-Hydroxy-4,5-dihydro-α-ionon aus (-)-(S)-α-Ionon

The absolute configuration of the chiral 4-hydroxy-β-ionones and 5-hydroxy-4,5-dihydro-α-ionones has been determined by chemical connection with (-)-(S)-α-ionone i.e. by stereoselective epoxidation of the latter, followed by base catalyzed opening of the epoxide as well as by its hydride reduction.