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US 9,309,194 B2Granted
Intermediates for the vitamin A and β-carotene synthesis
AssigneeDsm IP Assets B.V.
InventorsWerner Bonrath, Thomas Netscher, Jan Schütz, Bettina Wüstenberg
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Abstract
The present invention relates to compounds of formula (I) wherein R1 signifies a C1-C15 alkyl moiety or a C2 to C18 alkenyl moiety, to their process of production as well as to their use in organic synthesis, especially as intermediates (building blocks) in the synthesis of vitamin A or β-carotene or derivatives thereof, or other carotenoids, e.g. canthaxanthin, astaxanthin or zeaxanthin, preferably vitamin A.
Claims7
A compound of formula (I):
- wherein R1 signifies a C1-C15 alkyl moiety or a C2-C18 is alkenyl moiety.
Dependencies are inferred from the claim text.