524-01-6

Upstream product

• 502-70-5 crocetindial 
• 54756-73-9 (2,3,6-trimethylbenzyl)triphenylphosphonium bromide 
• 34341-29-2 2,3,6-trimethylbenzaldehyde 
• 56681-06-2 4-<2,3,6-Trimethyl-phenyl-(1)>-buten-(3)-on-(2) 
• 73435-78-6 (2E,4E)-3-methyl-5-(2,3,6-trimethylphenyl)-2,4-pentadienal 
• 57461-21-9 (3E)-4-(2,3,6-trimethylphenyl)but-3-en-2-one 
• 127-41-3 alpha-ionone 
• 6666-75-7 methyl 2-cyano-3-methylbut-2-enoate 
• 930118-49-3 (2E,4E)-3-methyl-5-(2,3,6-trimethylphenyl)-2,4-pentadienenitrile 
• 73435-80-0 (2E,4E,6E,8E)-3,7-dimethyl-9-(2,3,6-trimethylphenyl)-2,4,6,8-nonatetraenenal 
• 125069-77-4 (E)-4-octene-2,7-dione 
• 524-01-6 7,9-dicis isorenieratene 
• 2130-23-6 Oct-4-en-2,7-dion 
• 108773-90-6 4-Methyl-6-(2',3',6'-trimethyl-phenyl)-hexen-⁽⁵⁾-in-⁽¹⁾-ol-⁽⁴⁾ 

Downstream Products

• 524-00-5 8'-apo-φ-caroten-8'-al 

Relevant academic research and scientific papers

A new biomimetic-like aromatization of the cyclic end groups of terpenoids with stereospecific migration of one of the methyl groups: A convenient route to isorenieratene (φ,φ-carotene)

The synthesis of isorenieratene, a natural carotenoid isolated from the marine sponge Reniera japonica and from some anoxygenic phototrophic bacteria or nonphotosynthetic actinomycetes, was performed from α-, β- and retro-ionones. In this series of cycloh

Delocalized carotenoid cations in relation to the soliton model

A series of charge-delocalized carotenoid mono- and dications have been prepared by treatment of selected carotenoids with Bronsted and Lewis acids. The detailed structures of the carbocations were established by NMR studies in the temperature range from

New Synthesis of Natural Carotene Isorenieratene (φ,φ-Carotene) and its 3,3′-Dimethoxy Analogue

The main pigments of Brevibacterium linens are the aromatic carotenoids 3,3′-dihydroxyisorenieratene (ψ,ψ-carotene-3,3′-diol), the corresponding monohydroxy compound, and the hydrocarbon isorenieratene. We report herein new syntheses of isorenieratene (φ,

Novel aromatic carotenoid derivatives from sulfur photosynthetic bacteria in sediments

Novel aromatic carotenoid derivatives 7 and 8 have been identified by synthesis of reference compounds in a H2/PtO2-hydrogenated fraction from the organic extract of a lake sediment (lake Cadagno, Switzerland). They derive from unreported carotenoids presumably biosynthesized by purple sulfur photosynthetic bacteria (Chromatiaceae) and represent potential biomarkers to establish the occurrence of photic zone anoxia in ancient ecosystems.

CAROTENOIDS OF THE SPONGE POLYMASTIA GRANULOSA (HADROMERIDA)

The background information on natural carotenoids (new aspects), NMR spectroscopy of carotenoids (present status) and sponge chemosystematics, relevant to the present study, is briefly reviewed.The quantitative carotenoid composition of Polymastia granulo