Halogen Bond‐Catalyzed Friedel−Crafts Reactions of Furans Using a 2,2’‐Bipyridine‐Based Catalyst
作者:Huimiao Zhang、Patrick H. Toy
DOI:10.1002/adsc.202001019
日期:2021.1.5
to catalyze Friedel−Crafts reactions of furans. Electrophiles used successfully in these reactions included various enones, an aldehyde, and a carboxylic acid anhydride. The yields of the reactions were generally good using a moderate catalyst loading (0.025 or 0.1 equiv.) at a relatively low temperature (room temp. or 50 °C) in acetonitrile. The catalyst used was designed with a biaryl scaffold so
2,9-dioxabicyclo[4.2.1]Nonan - darstellung, massenspektroskopie und umlagerung eines neuen heterocyclischen systems
作者:Wittko Francke、Wolfgang Reith
DOI:10.1016/s0040-4039(01)92897-7
日期:1981.1
Nine different methyl-substituted compounds of a new acetal system 5 are synthesized from 4-(5-methyl-2-furyl)alkanoles 1 and are rearranged to ketones 6; mass spectroscopic fragmentation patterns are described.
The effect of side chain substituents on the intramolecular diels-alder reaction of the furan diene: the synthesis of (±)-1,4-epoxycadinane
作者:Christine Rogers、Brian A. Keay
DOI:10.1016/s0040-4039(00)99462-0
日期:1989.1
The effect of sidechain substituents on the IntramolecularDiels-Alderreaction of the Furan diene (IMDAF) is reported in which the sidechain connecting the furan diene to the dienophile contain four carbon atoms. The synthesis of 1,4-epoxycadinane utilizing this methodology is described.