162302-59-2

Upstream product

• 70905-69-0 2-trans-5-<(4'R)-4'-acetoxy-2',6',6'-trimethylcyclohex-1'-enyl>-3-methyl-2-penten-4-yn-1-yl acetate 
• 76686-48-1 all-trans-(7-Formyl-2-methyl-2,4,6-octatrienyl)triphenylphosphoniumchlorid 
• 98718-44-6 (R)-4-<(E)-5-hydroxy-3-methylpent-3-en-1-ynyl>-3,5,5-trimethylcyclohex-3-enol 
• 159171-18-3 2-E-5-((4'R)-4'-hydroxy-2',2',6'-trimethylcyclohex-1'-enyl)-3-methyl-2-penten-4-yn-1-al 

Downstream Products

• 31063-73-7 (all-E)-(3R,3'R)-diatoxanthin 

Relevant academic research and scientific papers

Total synthesis of C31-methyl ketone apocarotenoids 2: The first total synthesis of (3R)-triophaxanthin

Five possible synthetic strategies have been developed for the synthesis of (all-E)-(3R)-triophaxanthin. A short discussion of these strategies is presented. Fully characterised, optically active (all-E)-(3R)-triophaxanthin was prepared by total synthesis

Carotenoids and related polyenes. Part 3. First total synthesis of fucoxanthin and halocynthiaxanthin using oxo-metallic catalyst

The first total synthesis of optically active fucoxanthin 1 and halocynthiaxanthin 2 had been accomplished via the 8-oxo compound 5, efficiently prepared by rearrangement of the α-acetylenic alcohol 10 using oxo-metallic catalyst and subsequent iodine-catalysed double-bond shift.

Total Synthesis of Acetylenic Carotenoids. 2. Synthesis of (all-E)-(3R,3'R)-Diatoxanthin and (all-E)-(3R)-7,8-Didehydrocryptoxanthin

Optically active (all-E)-(3R,3'R)-diatoxanthin, indistinguishable from the natural carotenol, has been prepared by total synthesis for the first time with 34percent overall yield in four steps from the available (2E)-5-(4R)-4-hydroxy-2,6,6-trimethylcyclo