79734-41-1

Upstream product

• 28840-09-7 ethyl 5-(4,4-ehtylenedioxy-2,6,6-trimethyl-1-cyclohexen-1-yl)-3-methyl-2,4-pentadienoate 
• 120657-96-7 ethyl 3-tert-butyldimethylsilyloxy-β-ionylideneacetate 
• 6399-81-1 triphenylphosphine hydrobromide 
• 120674-68-2 (2E,4E)-5-[4-(tert-Butyl-dimethyl-silanyloxy)-2,6,6-trimethyl-cyclohex-1-enyl]-3-methyl-penta-2,4-dien-1-ol 
• 116296-75-4 (rac)-(E)-4-(4-hydroxy-2,6,6-trimethyl-1-cyclohexen-1-yl)-3-buten-2-one 
• 76739-74-7 (E)-4-((1R,4R)-4-hydroxy-2,6,6-trimethylcyclohex-2-en-1-yl)-but-3-en-2-one 
• 1200125-02-5 (rac)-(E)-4-(4-hydroxy-2,6,6-trimethyl-2-cyclohexen-1-yl)-2,2-ethylenedioxy-3-butene 
• 60002-20-2 tertiary vinyl-β-ionol 
• 95343-65-0 2-trans-5-(4'-hydroxy-2',2',6'-trimethylclohex-1'-enyl)-3-methylpent-2-en-4-yn-1-yltriphenylphosphonium bromide 

Downstream Products

• 1620629-39-1 ethyl (2E,4E,6E,8E,10E,12E,14E)-15-(4-hydroxy-2,6,6-trimethylcyclohex-1-en-1-yl)-4,9,13-trimethylpentadeca-2,4,6,8,10,12,14-heptaenoate 
• 15486-31-4 (2E,4E,6E,8E,10E,12E,14E)-15-(4-hydroxy-2,6,6-trimethylcyclohex-1-en-1-yl)-4,9,13-trimethylpentadeca-2,4,6,8,10,12,14-heptaenal 
• 50837-94-0 (2E,4E,6E,8E,10E,12E)-13-(4-hydroxy-2,6,6-trimethylcyclohex-1-en-1-yl)-2,7,11-trimethyltrideca-2,4,6,8,10,12-hexaenal 
• 76686-32-3 methyl 3-hydroxyretinoate 
• 115075-58-6 all trans, 13-cis 3-hydroxyretinal 
• 102918-00-3 all trans, 11-cis 3-hydroxyretinal 
• 6890-93-3 4-((1E,3E,5E,7E)-9-Hydroxy-3,7-dimethyl-nona-1,3,5,7-tetraenyl)-3,5,5-trimethyl-cyclohex-3-enol 
• 6890-91-1 (3RS,all-E)-hydroxyretinal 
• 1403473-20-0 C₈₀H₁₀₄O₂ 

Relevant academic research and scientific papers

Synthesis and characterization of quantum dot nanoparticles bound to the plant volatile precursor of hydroxy-apo-10′-carotenal

This study is focused on the synthesis and characterization of hydroxy-apo-10′-carotenal/quantum dot (QD) conjugates aiming at the in vivo visualization of β-ionone, a carotenoid-derived volatile compound known for its important contribution to the flavor and aroma of many fruits, vegetables, and plants. The synthesis of nanoparticles bound to plant volatile precursors was achieved via coupling reaction of the QD to C27- aldehyde which was prepared from α-ionone via 12 steps in 2.4% overall yield. The formation of the QD-conjugate was confirmed by measuring its fluorescence spectrum to observe the occurrence of fluorescence resonance energy transfer.

Catalytic hydrogenation

Compounds of the formula: STR1 wherein R 1 is a 2,6,6-trimethyl-1-cyclohexen-1-yl or 2,3,6-trimethylphenyl group, either of which may be unsubstituted or substituted by a hydroxy group or a protected hydroxy group, R 2 is aryl, and X - is an anionare manufactured by hydrogenating a compound of the formula: STR2 wherein R 1, R 2 and X are as above, in an organic solvent or aqueous-organic solvent in the presence of a nickel-, palladium-, platinum-, cobalt-, rhodium-, iridium-, or ruthenium-containing catalyst.The process is suitable as an intermediate step in carotenoid and retinoid syntheses.

Further Synthesis of Zeaxanthin and Rhodoxanthin

A modification of a previously reported synthesis of zeaxanthin (1), and routes to both zeaxanthin and rhodoxanthin (2) from α-ionone, are described.