Rhenium-catalyzed dehydrogenative olefination of C(sp<sup>3</sup>)–H bonds with hypervalent iodine(<scp>iii</scp>) reagents
作者:Haidong Gu、Congyang Wang
DOI:10.1039/c5ob00619h
日期:——
dehydrogenative olefination of C(sp3)–H bonds is disclosed here, by merging rhenium catalysis with an alanine-derived hypervalentiodine(III) reagent. Thus, cyclic and acyclic ethers, toluene derivatives, cycloalkanes, and nitriles are all successfully alkenylated in a regio- and stereoselective manner.
Some new members of the benziodazole series that contain trivalent iodine have been prepared from the appropriate ortho-iodobenzamides by oxidation with either chlorine, t-butyl hypochlorite, of peracetic acid. None of the compounds had any worthwhile biological activity.