52152-30-4

Upstream product

• 24336-19-4 all-trans-9-desmethyltretinal 
• 129165-56-6 5-(2’,6’,6’-trimethylcyclohex-1’-en-1’-yl)-penta-2,4-dienenitrile 
• 82648-70-2 diethyl (3-cyano-2-methyl-2-trans-propenyl)phosphonate 
• 4808-00-8 (2E,4E)-5-(2’,6’,6’-trimethylcyclohex-1’-en-1’-yl)-penta-2,4-dienenal 
• 53018-97-6 (E)-3-(2,6,6-Trimethyl-cyclohex-1-enyl)-propenal 
• 14393-45-4 (E)-3-(2,6,6-trimethylcyclohex-1-enyl)acrylic acid 
• 14393-44-3 (E)-3-(2,6,6-trimethylcyclohex-1-en-1-yl)prop-2-en-1-ol 
• 129261-72-9 (2E,4E,6E,8E)-3-Methyl-9-(2,6,6-trimethyl-cyclohex-1-enyl)-nona-2,4,6,8-tetraenenitrile 

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

Synthesis of specifically deuteriated 9- and 13-demethylretinals

(13-2H)13-Demethylretinal, (11,12,13-2H3)13-demethylretinal, (9-2H)9-demethylretinal and (9,10-2H2)9-demethylretinal were prepared in all-E, 9Z, 11Z and 13Z isomeric form with high deuterium incorporation.In the

Structural Assignment of Isomeric Chain Demethylated Retinals by (1)H NMR Spectroscopy

Geometric isomers of all-trans-9-demethyl-, -13-demethyl- and -9,13-bisdemethylretinal were prepared.The 360 MHz (1)H NMR spectra of 13 geometric isomers of these three demethylated retinal systems have been measured.The chemical shift and couplimg constant values in each case allowed an unambiguous assignment of the structure of each compound.