1116695-25-0Relevant articles and documents
Expeditious and practical synthesis of lycopene
Choi, Eunho,Jung, Eun Yeo,Koo, Sangho
, p. 365 - 369 (2008)
Our lycopene synthesis highlights the expeditious assembly of the carbon skeleton by the use of a readily available ten-carbon unit, geraniol, rather than the original natural five-carbon building block, isopentenyl pyrophosphate. Furthermore, four oxidation steps by the enzyme desaturases to produce the conjugated carbon-carbon double bonds of lycopene are merged into one-pot double elimination reactions in our synthesis. These accomplished the highly efficient synthesis of all-(E)-lycopene from geraniol through a seven-step sequence in 51% overall yield.
DIALDEHYDE COMPOUND, PREPARATION METHOD THEREOF, AND SYNTHETIC METHOD OF CAROTENOIDS USING THE SAME
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Page/Page column 16, (2010/11/29)
The novel C dialdehyde compound which can be efficiently utilized in the synthesis of carotenoid compounds based on the sulfone chemistry, the preparation method of the same, and the expeditious and practical synthetic processes for lycopene and β-carotene by the use of the above novel compound are disclosed. The syntheses of lycopene and β-carotene are characterized by the processes of the coupling reaction between two equivalents of geranyl sulfone or cyclic geranyl sulfone and the above C dialdehyde, the functional group transformation reactions of the diol in the resulting C 40 coupling products to X's (either halogens or ethers), and the double elimination reactions of the functional groups of the benzenesulfonyl and X to produce the fully conjugated polyene chain of the carotenoids.
