160332-75-2

Upstream product

• 26533-77-7 (R)-4-<(E/Z)-5-hydroxy-3-methylpent-3-en-1-ynyl>-3,5,5-trimethylcyclohex-3-enol 
• 20548-02-1 (4R,6R)-4-hydroxy-2,2,6-trimethylcyclohexan-1-one 
• 152125-31-0 (4R,6R)-2,2,6-Trimethyl-4-trimethylsilanyloxy-cyclohexanone 
• 160332-73-0 (-)-(1'R,4'R,6'R)-(Z)-5-(1',4'-dihydroxy-2',2',6'-trimethylcyclohexyl)-3-methyl-2-penten-4-yn-1-ol 
• 160332-74-1 2-cis-5-<(4'R)-4'-acetoxy-2',6',6'-trimethylcyclohex-1'-enyl>-3-methyl-2-penten-4-yn-1-yl acetate 

Downstream Products

• 70267-38-8 9-Z-(3R,3'R)-diatoxanthin 

Relevant academic research and scientific papers

Total synthesis of acetylenic carotenoids. 3. First total synthesis of optically active 9-Z-(3R,3'R)-diatoxanthin and 9-Z-(3R)-7,8-didehydrocryptoxanthin.

Optically active 9-Z-(3R,3'R)-diatoxanthin and 9-Z-(3R)-7,8-didehydrocryptoxanthin were synthesised in an overall yield of 9percent and 11percent respectively, with a seven step C9+C6+C25=C40 strategy.A key intermediate was the previously undescribed C15-