83646-59-7

Upstream product

• 70905-63-4 4(S),5(R)-4-ethynyl-4-hydroxy-3,3,5-trimethylcyclohexan-1-one 
• 20548-02-1 trans (4R,6R)-4-hydroxy-2,2,6-trimethylcyclohexanone 
• 74-86-2 acetylene 
• 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 

Downstream Products

• 70905-65-6 1(R),4(S),5(R)-4-ethynyl-4-hydroxy-3,3,5-trimethyl-cyclohexyl acetate 
• 1376185-66-8 (2E)-3-methyl-5-[(4R)-2,6,6-trimethyl-4-triethylsilyloxycyclo-hex-1-en-1-yl]pent-2-en-4-yn-1-1ol 
• 1376185-70-4 [(1R)-4-((3E)-5-chloro-3-methylpent-3-en-1-ynyl)-3,5,5-trimethylcyclohex-3-en-1-yloxy]triethylsilane 
• 1376185-93-1 (3E,5E,7E,9E,11E,13E,15E)-3,7,12,16-tetramethyl-18-[(4R)-2,6,6-trimethyl-4-triethylsilyloxycyclohex-1-en-1-yl]octadeca-3,5,7,9,11,13,15-heptaen-17-yn-2-one 
• 1376185-96-4 [((1R,1'R)-(3E,5E,7E,9E,11E,13E,15E)-3,7,12,16-Tetramethyloctadeca-3,5,7,9,11,13,15-heptaen-1,17-diyne-1,18-diyl)bis(3,5,5-trimethylcyclohex-3-ene-4,1-diyl)bisoxy]bis-(triethylsilane) 
• 1376185-61-3 triethyl[(4R)-4-ethynyl-3,5,5-trimethylcyclohex-3-en-1-yl]-oxysilane 
• 26666-93-3 (3R',3'R)-alloxanthin 
• 118829-47-3 1-<4-(1-methoxy-1-methylethoxy)-2,6,6-trimethylcyclohex-1-enyl>-3-methylpenta-1,4-dien-3-ol 
• 76530-42-2 (R)-4-ethynyl-3,5,5-trimethylcyclohex-3-enyl acetate 
• 118829-40-6 (R)-4-ethynyl-3,5,5-trimethylcyclohex-3-en-1-ol 
• 214335-89-4 (1R)-4-(3-acetoxypropyl)-3,5,5-trimethylcyclohex-3-enyl acetate 
• 214335-86-1 (1R)-4-(2-acetoxyethyl)-3,5,5-trimethylcyclohex-3-enyl acetate 
• 214335-88-3 3-((4R)-4-acetoxy-2,6,6-trimethylcyclohex-1-enyl)propionitrile 
• 214335-59-8 Acetic acid (1R,5R)-3,3,5-trimethyl-4-[2-oxo-eth-(Z)-ylidene]-cyclohexyl ester 

Relevant academic research and scientific papers

Stereoselective total synthesis of the acetylenic carotenoids alloxanthin and triophaxanthin

Stereoselective total synthesis of the C40-diacetylenic carotenoid alloxanthin (1) and the C31-acetylenic apocarotenoid triophaxanthin (2) was accomplished by Wittig condensation of C 10-dialdehyde 20 or C16-ket

Carotenoids and related polyenes. Part 5. Lewis acid-promoted stereoselective rearrangement of 5,6-epoxy carotenoid model compounds

The novel acyclic tetrasubstituted olefinic end group and the cyclopentyl end group of carotenoids were obtained by Lewis acid-promoted stereoselective rearrangement of the epoxide end group of 5,6-epoxy carotenoids. The scope and limitation of this rearr

Stereoselective rearrangement of 5,6-epoxy carotenoid model compounds

Carotenoids with novel acyclic tetrasubstituted olefinic and cyclopentyl end groups are obtained by Lewis acid-promoted stereoselective rearrangement of the epoxide end group of 5,6-epoxy carotenoids.

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

Starting from the readily available, optically active (4R)-hydroxy-2,2,6-trimethylcyclohexanone (2), a new technical synthesis of (3R,3'R)-zeaxanthin is described.According to a completely new C9 + C2 + C4= C15 scheme, the ketone 2 was protected, ethynyla

Ethynylcyclohexene compounds

A process for the manufacture of compounds of the general formula STR1 wherein R1 signifies hydroxy or an etherified hydroxy group, and of zeaxanthin by converting a compound of the general formula STR2 wherein R1 has the above signi

Fermentation of Fragrances: Biotransformation of β-Ionone by Lasiodiplodia theobromae

Pre-grown mycelia of Lasiodiplodia theobromae ATCC 28570 transform β-ionone (1) into a large variety of metabolites, by mainly degrading the side-chain of the β-ionone molecule by a C2-unity.The enzyme system responsible for this degradation is proposed to be an oxygenase, which gives rise to the formation of the main product β-cyclo-homogeraniol (8) in analogy to a Baeyer-Villiger oxidation.Further enzymic actions of Lasiodiplodia such as hydrogenations and hydroxylations lead to an accumulation of several not yet described β-ionone metabolites.

Method of producing coloring agents

A method of stereo-specifically synthesizing Zeaxanthin and alloxanthin, natural food coloring agents from 2,6,6-trimethyl-1,4-cyclohexanedione including intermediates in this synthesis.