135322-83-7

Upstream product

• 79-77-6 (E)-β-ionone 
• 135322-84-8 (2E,4E,6E)-3-Methyl-7-(2,6,6-trimethyl-cyclohex-1-enyl)-hepta-2,4,6-trienenitrile 
• 14393-44-3 (E)-3-(2,6,6-trimethylcyclohex-1-en-1-yl)prop-2-en-1-ol 
• 2537-48-6 diethyl 1-cyanomethylphosphonate 
• 135322-80-4 (3E,5E,7E)-4-Methyl-8-(2,6,6-trimethyl-cyclohex-1-enyl)-octa-3,5,7-trien-2-one 
• 135346-06-4 (2E,4E,6E)-3-Methyl-7-(2,6,6-trimethyl-cyclohex-1-enyl)-hepta-2,4,6-trienoic acid ethyl ester 
• 99647-05-9 (E,E)-6-(2,6,6-trimethylcyclohex-1-enyl)hexa-3,5-dien-2-one 
• 53018-97-6 (E)-3-(2,6,6-Trimethyl-cyclohex-1-enyl)-propenal 
• 135322-80-4 (3E,5E,7E)-4-Methyl-8-(2,6,6-trimethyl-cyclohex-1-enyl)-octa-3,5,7-trien-2-one 
• 14393-46-5 methyl (E)-3-(2,6,6-trimethylcyclohex-1-en-1-yl)acrylate 
• 135322-81-5 (2E,4E,6E)-3-methyl-7-(2,6,6-trimethylcyclohexen-1-yl)-2,4,6-heptatrien-1-al 

Downstream Products

• 135322-78-0 all-trans-11-methyl-9-demethylretinal 
• 135414-15-2 11,13-dicis-11-methyl-9-demethylretinal 
• 135414-20-9 11-cis-11-methyl-9-demethylretinal 
• 135414-17-4 13-cis-11-methyl-9-demethylretinal 

Relevant academic research and scientific papers

Contribution of methyls in retinal side chain to regioselective photoisomerization of retinochromes

All-trans-9-demethyl-11-methylretinal was synthesized to elucidate the chromophoric interaction between hydrophobic part in retinochrome and 9-methyl substituent of retinal. Photoirradiation of its pigment efficiently gave the 11-cis-isomer in 90% regiose

11-Methyl-9-demethylretinal and 11-Methyl-9,13-didemethylretinal. Effect of Altered Methyl Substitution Pattern on Polyene Conformation, Photoisomerization and Formation of Visual Pigment Analogs

Altered methyl substitution in 11-methyl-9-demethylretinal (1) and 11-methyl-9,13-didemethylretinal (2) resulted in changed polyene conformation, regioselectivity of photoisomerization, uv/vis characteristics and reactivity toward bovine opsin.That the 11-cis isomer of 1 and 9-cis isomer of 2 gave visual pigment analogs (λmax 475 and 459 nm respectively) while the 11-cis isomer of 2 did not is consistent with the requirement of a twisted chromophore near the middle of the polyene chain for pigment formation.