130696-72-9

Upstream product

• 6153-06-6 (E)-3-methylpent-2-en-4-yn-1-ol 
• 20548-02-1 (4R,6R)-4-hydroxy-2,2,6-trimethylcyclohexan-1-one 
• 49846-56-2 2-cis-5-(1'-hydroxy-2',2',6'-trimethyl-4'-oxocyclohexyl)-3-methylpent-2-en-4-yn-1-ol 
• 26533-74-4 2-cis-1-acetoxy-5-(1'-hydroxy-2',2',6'-trimethyl-4'-oxocyclohexyl)-3-methylpent-2-en-4-yne 
• 49846-56-2 2-trans-5-(1'-hydroxy-2',2',6'-trimethyl-4'-oxocyclohexyl)-3-methylpent-2-en-4-yn-1-ol 
• 95307-31-6 2-trans-5-(4',4'-ethylenedioxy-1'-hydroxy-2',2',6'-trimethylcyclohexyl)-3-methylpent-2-en-4-yn-1-ol 
• 14203-67-9 2,2,6-trimethyl-1,4-cyclohexanedione 4-ethylene acetal 
• 95307-31-6 2-cis-5-(4',4'-ethylenedioxy-1'-hydroxy-2',2',6'-trimethylcyclohexyl)-3-methylpent-2-en-4-yn-1-ol 
• 152125-31-0 (4R,6R)-2,2,6-Trimethyl-4-trimethylsilanyloxy-cyclohexanone 

Downstream Products

• 81749-12-4 (2Z,4E)-5-((1R,4R,6R)-1,4-Dihydroxy-2,2,6-trimethyl-cyclohexyl)-3-methyl-penta-2,4-dienal 
• 41967-83-3 Acetic acid (1R,4R,5R)-4-((1E,3Z)-5-acetoxy-3-methyl-penta-1,3-dienyl)-4-hydroxy-3,3,5-trimethyl-cyclohexyl ester 
• 95343-54-7 9-cis-3,6-dihydroxy-7,8-didehydro-5,6-dihydro-12'-apo-β-caroten-12'-al 
• 95343-58-1 9-cis-7,8-didehydro-5,6-dihydro-β,β-carotene-3,6-diol 
• 95387-07-8 9-cis-7,8-didehydro-5,6-dihydro-β,ε-carotene-3,6-diol 
• 95307-37-2 9-cis-3-acetoxy-7,8-didehydro-β,β-carotene 
• 95343-55-8 9-cis-9'-cis-7,8,7',8'-tetradehydro-5,6,5',6'-tetrahydro-β,β-carotene-3,6,3',6'-tetraol 
• 95307-36-1 9-cis-3-acetoxy-7,8-didehydro-β,ε-carotene 
• 95343-59-2 Acetic acid (1R,4S,5R)-4-hydroxy-3,3,5-trimethyl-4-[(3Z,5E,7E,9E,11E,13E,15E,17E)-3,7,12,16-tetramethyl-18-(2,6,6-trimethyl-cyclohex-1-enyl)-octadeca-3,5,7,9,11,13,15,17-octaen-1-ynyl]-cyclohexyl ester 
• 95343-56-9 Acetic acid (1R,4S,5R)-4-[(3Z,5E,7E,9E,11E,13E,15Z)-18-((1S,4R,6R)-4-acetoxy-1-hydroxy-2,2,6-trimethyl-cyclohexyl)-3,7,12,16-tetramethyl-octadeca-3,5,7,9,11,13,15-heptaene-1,17-diynyl]-4-hydroxy-3,3,5-trimethyl-cyclohexyl ester 
• 95343-52-5 2-cis-5-(4'-hydroxy-2',2',6'-trimethylclohex-1'-enyl)-3-methylpent-2-en-4-yn-1-yltriphenylphosphonium bromide 
• 95307-33-8 2-cis-5-(4'-hydroxy-2',2',6'-trimethylclohex-1'-enyl)-3-methylpent-2-en-4-yn-1-ol 
• 26533-78-8 9-cis-3-hydroxy-7,8-didehydro-12'-apo-β-caroten-12'-al 
• 21284-10-6 9-cis-7,8-didehydro-β,ε-caroten-3-ol 

Relevant academic research and scientific papers

First Total Synthesis of (+/-)-Peridinin, (+/-)-Pyrrhoxanthin and the Optically Active Peridinin

The first total synthesis of peridinin 1 and pyrrhoxanthin 2 has been accomplished via the reaction of the C15-epoxy formyl ester 21 with the C22-allenic sulfone 28 or the C22-acetylenic sulfone 39.A synthesis of the optically active peridinin has also be

87. Technical Procedures for the Syntheses of Carotenoids and Related Compounds from 6-Oxo-isophorone: Syntheses of (3R,3'R)-Zeaxanthin Part I

Starting from the readily available, optically active (4R)-4-hydroxy-2,2,6-trimethylcyclohexanone (1), a new technical synthesis of (3R,3'R)-zeaxanthin is described.According to a 2(C9 + C6) + C10= C40 construction scheme, the ketone 1 was first transformed with (E)-3-methylpent-2-en-4-yn-1-ol (5) into a C15-intermediate which, by a three-step sequence, could be converted into the known olefinic C15-Wittig salt 4.Optimized conditions for the final Wittig reaction of 4 with the C10-dialdehyde 3 are discussed.Based on 1, the overall yield of the entire technical process is ca. 40percent.

Carotenoids and Related Compounds. Part 38. Synthesis of (3RS,3'RS)-Alloxanthin and Other Acetylenes

The all-trans, 9-cis, and 9,9'-di-cis forms of (3RS,3'RS)-alloxanthin have been synthesized, also the 9-cis-isomer of (3RS,6'RS)-crocoxanthin.Perhydrogenation of alloxanthin gives a product with the same optical properties as perhydrozeaxanthin.These resu