Untersuchungen über eine Carbonyl-Olefinierung mit α-metallierten Isocyaniden. Die Synthese von β-Carotin und anderen Polyenen

Authors


Abstract

The synthesis of various polyene isocyanides, e.g. β-ionyl isocyanide and all-trans-retinyl isocyanide is reported. Their use in carbonyl-olefination was investigated and compared with the Wittig reaction. β-Carotene was obtained from all-traws-retinal and all-trans-retinyl isocyanide in good yield.

Ancillary