130793-76-9

Upstream product

• 6541-45-3 all-E 8'-apo-7,8-dihydro-ψ-caroten-8'-al 
• 110-93-0 6-Methyl-hept-5-en-2-on 
• 93040-97-2 (2E,4E,6E,10E)-3,7,11,15-Tetramethyl-hexadeca-2,4,6,10,14-pentaenenitrile 
• 130681-69-5 (7-methoxy-3,7-dimethyl-2,4-octadien-1-yl)triphenylphosphonium bromide 
• 136003-73-1 (2E,4E,6E,8E,10E,12E,14E,18E)-2,6,11,15,19,23-Hexamethyl-tetracosa-2,4,6,8,10,12,14,18,22-nonaenenitrile 
• 136003-72-0 (2E,4E,6E,8E,10E,14E)-2,7,11,15,19-Pentamethyl-icosa-2,4,6,8,10,14,18-heptaenenitrile 
• 39060-83-8 ethyl-5,9,13-trimethyl-2,4,8,12-tetradecatetraenoate 
• 130681-84-4 (E)-4-Bromo-7-methoxy-3,7-dimethyl-oct-2-enoic acid ethyl ester 
• 130681-68-4 4-(diethylphosphono)-2-methyl-2-butenenitrile 
• 130681-72-0 ethyl 2-E,4-E-7-methoxy-3,7-dimethyl-2,4-octadienoate 
• 3796-51-8 all-E 6,10,14-trimethyl-3,5,9,13-pentadecatetraen-2-one 
• 130681-85-5 (2E,4E)-7-Methoxy-3,7-dimethyl-octa-2,4-dien-1-ol 
• 130681-70-8 4-chloro-2-methyl-2-butenenitrile 
• 93040-98-3 all-E 3,7,11,15-tetramethyl-2,4,6,10,14-hexadecapentanenal 

Relevant academic research and scientific papers

Synthesis and spectroscopy of (14'-13C)- and (15'-13C)spheroidene

The preparation of two 13C-labelled isotopomers of spheroidene, the carotenoid bound in the photosynthetic reaction center of Rhodobacter sphaeroides, is described.All-E (14'-13C)-spheroidene has been synthesized in high yield and purity and with more than 98percent 13C incorporation starting from (2-13C)acetonitrile; similarly, all-E (15'-13C)spheroidene has been obtained starting from (1-13C)-acetonitrile.The spectroscopic properties of all-E spheroidene and its (14'-13C)- and (15'-13C)isotopomers are discussed.The mass spectra of the labelled compounds reveal that toluene is eliminated mainly from the central part of the molecule.Analysis of the 1H-NMR spectrum of all-E (15'-13C)spheroidene gives a value of 14.0 Hz for the 1H-1H coupling constant of the 15-15'double bond.