130681-69-5

Upstream product

• 110-93-0 6-Methyl-hept-5-en-2-on 
• 130681-84-4 (E)-4-Bromo-7-methoxy-3,7-dimethyl-oct-2-enoic acid ethyl ester 
• 130681-72-0 ethyl 2-E,4-E-7-methoxy-3,7-dimethyl-2,4-octadienoate 
• 130681-71-9 ethyl 2-E-7-methoxy-3,7-dimethyl-2-octenoate 
• 2153-77-7 6-methoxy-6-methylheptane-2-one 
• 6399-81-1 triphenylphosphine hydrobromide 
• 133077-17-5 1,7-Dimethoxy-3,7-dimethyl-2,4-octadiene 
• 130681-85-5 (2E,4E)-7-Methoxy-3,7-dimethyl-octa-2,4-dien-1-ol 

Downstream Products

• 13836-61-8 spheroidene 
• 5085-16-5 anhydrorhodovibrin 
• 6168-66-7 (6E,10E,12E,14E,16E,18E,20E,22E,24Z,26Z,28E)-31-Methoxy-2,6,10,14,19,23,27,31-octamethyl-dotriaconta-2,6,10,12,14,16,18,20,22,24,26,28-dodecaene 
• 22076-59-1 11',12'-dihydrospheroidene 
• 22076-59-1 (6E,10E,14E,16E,18E,20E,22E,24Z,26E,28E)-31-Methoxy-2,6,10,14,19,23,27,31-octamethyl-dotriaconta-2,6,10,14,16,18,20,22,24,26,28-undecaene 

Relevant academic research and scientific papers

Synthesis and spectroscopic properties of 14-, 15-, 15'- and 14'-monodeutero- and 15,15'-dideuterospheroidenes

The high-yield synthesis of four mono- and one dideutero-labelled spheroidene, the carotenoid bound in the reaction centre of Rhodobacter sphaeroides 2.4.1, is described.The all-E isomers (14'-2H)-, (15'-2H)-, (15-2H)-, (14-2H)- and (15,15'-2H2)spheroidenes have been prepared in high purity with more than 95percent 2H incorporation from C(2)H3CN and/or Dibal-(2)H.The spectroscopic properties of the labelled compounds are discussed; the mass spectra reveal that toluene elimination from spheroidene is restricted to a single location in the molecule.

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.