4808-04-2Relevant articles and documents
Palladium-catalyzed coupling reaction of an enol nonaflate with (vinyl)tributylstannanes and acetylenes: A highly stereoselective synthesis of 8,18-13C2-labeled retinal
Wada, Akimori,Ieki, Yasuhiro,Nakamura, Saeko,Ito, Masayoshi
, p. 1581 - 1588 (2007/10/03)
Here we report that enol nonaflates exhibit higher reactivity than the corresponding enol triflates in palladium-catalyzed cross-coupling reactions with various (vinyl)tributylstannanes and acetylenes. We also highlight the reaction of a vinyl nonaflate,
Preparation of 11,14-epoxy-bridged and isomeric chain-demethylated retinals. 13-Demethyl-11,14-epoxy-, 9-demethyl-, 13-demethyl- and 9,13-bisdemethyl-retinals
Broek, A. D.,Muradin-Szweykowska, M.,Courtin, J. M. L.,Lugtenburg, J.
, p. 46 - 51 (2007/10/02)
9-Cis- and all-trans-13-demethyl-11,14-epoxyretinyl acetate were prepared via a Wittig coupling between β-ionylidenetriphenylphosphonium bromide (1) and 5-(acetoxymethyl)furfural.Saponification of these acetates, subsequent oxidation and HPLC separation a