Preparation of (all-E)- and (11Z)-12-Haloretinals and (11Z,13Z)- and (13Z)-14-Haloretinals by the C15 + C5 Route ? Exploring the Possibility of Preparing any Retinoid Rationally Chemically Modified at any Position in the Conjugated Tail
作者:Yajie Wang、Johan Lugtenburg
DOI:10.1002/ejoc.200400488
日期:2004.12
that many more retinals chemically modified at the 12-position could be prepared in this manner. Selectfluor®, a good reagent for introducing a fluorine atom by electrophilic substitution, does not give the 12-fluororetinal system. However, 14-fluororetinal is simply available by reaction of the anion with Selectfluor®. Cl, Br and I atoms were also introduced at the 14-position of retinal both in the