56013-13-9

Upstream product

• 145572-39-0 1-bromo-4,4-diethoxy-2-methylbut-1-ene 
• 145572-38-9 1,2-dibromo-4,4-diethoxy-2-methylbutane 
• 54340-95-3 1,1-diethoxy-3-methyl-3-butene 
• 432-25-7 2,6,6-trimethylcyclohex-1-enecarbaldehyde 
• 151018-50-7 1-bromo-4-ethoxy-2-methylbuta-1,3-diene 
• 3917-41-7 (2E,4E)-3-methyl-5-(2,6,6-trimethyl-1-cyclohexen-1-yl)-2,4-pentadienal 

Downstream Products

• 85319-53-5 (2E,4Z,6Z)-2-Fluoro-5-methyl-7-(2,6,6-trimethyl-cyclohex-1-enyl)-hepta-2,4,6-trienoic acid ethyl ester 
• 119718-31-9 all-cis-retinonitrile 
• 119718-30-8 7-cis,9-cis,11-cis-retinonitrile 
• 56142-98-4 7-cis,9-cis,13-cis-retinonitrile 
• 56085-51-9 7-cis,9-cis-retinonitrile 
• 85319-50-2 2-((1Z,3Z,5E)-6-Chloro-3-methyl-hexa-1,3,5-trienyl)-1,3,3-trimethyl-cyclohexene 
• 85354-07-0 (3Z,5Z,7Z)-6-Methyl-8-(2,6,6-trimethyl-cyclohex-1-enyl)-octa-3,5,7-trien-2-one 
• 85319-51-3 (5Z,7Z)-6-Methyl-8-(2,6,6-trimethyl-cyclohex-1-enyl)-octa-5,7-dien-3-yn-2-ol 
• 85319-52-4 (5Z,7Z)-6-Methyl-8-(2,6,6-trimethyl-cyclohex-1-enyl)-octa-5,7-dien-3-yn-2-one 
• 85319-54-6 (3E,5Z,7Z)-3-Fluoro-6-methyl-8-(2,6,6-trimethyl-cyclohex-1-enyl)-octa-3,5,7-trien-2-one 
• 79985-69-6 (2E,4Z,6Z)-2-Fluoro-5-methyl-7-(2,6,6-trimethyl-cyclohex-1-enyl)-hepta-2,4,6-trienoic acid 
• 85354-11-6 7-cis,9-cis,11-cis-12-fluororetinal 
• 85354-10-5 all-cis-retinol 
• 3899-20-5 ethyl all-cis-retinoate 

Relevant academic research and scientific papers

Polyvinylogation Reagents: 1-Lithio-4-trimethylsiloxy-penta-1,3-diene and 1-Lithio-4-ethoxy-2-methyl-buta-1,3-diene

Title products, lithiodienol ethers 6a and 7a, synthetic equivalents of 4-lithio pent-3-ene-2-one and 4-lithio-senecialdehyde were obtained by bromine-lithium exchange.They are choice reagents for the transformations 1 -> 2 and 1 -> 3, respectively.

β-Lactoglobulin Directed Photoisomerization of Retinal and Related Compounds

The 11-cis enriched photostationary state mixture of retinal trapped in BLG, a water soluble protein, is similar to that of retinal in heptanol.The results, along with those of the lower homologs, are consistend with a model involving specific protein interaction with the cyclohexenyl portion of the substrate and remote protonation of the aldehyde carbonyl group.

PHOTOISOMERIZATION OF THE C18 KETONE IN THE VITAMIN A SERIES. SOLVENT EFFECT ON PHOTOISOMERIZATION OF COMPOUNDS RELATED TO RETINAL

The directions of photoisomerization of polyenals and polyenones are believed to be controlled by the relative ordering of n,?* and ?,?* states.