Helvetica Chimica Acta p. 1148 - 1174 (1983)
Update date:2022-08-04
Topics:
Buetikofer, Pierre-Andre
Eugster, Conrad Hans
A versatile synthesis of hydroxymethyl-carotenoids with β- or ε-end groups is presented.It makes use of the reactive vinyl anions prepared by the Shapiro-reaction from (phenylsulfonyl)hydrazones of polyenones and their smooth 1,2-addition to polyenals.Thus, e.g. (3R,6'R)-β,ε-carotene-3,19-diol (72), an optically active model compound structurally very close to loroxanthin (1), has been sinthesized.
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