oxepins and propadiene

oxepins has been researched along with propadiene* in 1 studies

Other Studies

1 other study(ies) available for oxepins and propadiene

Article	Year
Metal-catalyzed cycloetherification reactions of β,γ- and γ,δ-allendiols: chemo-, regio-, and stereocontrol in the synthesis of oxacycles. Chemistry (Weinheim an der Bergstrasse, Germany), 2010, Nov-22, Volume: 16, Issue:44 Versatile routes that lead to a variety of functionalized enantiopure tetrahydrofurans, dihydropyrans, and tetrahydrooxepines are based on chemo-, regio-, and stereocontrolled metal-catalyzed oxycyclization reactions of β,γ- and γ,δ-allendiols, which were readily prepared from (R)-2,3-O-isopropylideneglyceraldehyde. The application of Pd(II), Pt(II), Au(III), or La(III) salts as the catalysts gives controlled access to differently sized oxacycles in enantiopure form. Usually, chemoselective cyclization reactions occurred exclusively by attack of the secondary hydroxy group (except for the oxybromination of phenyl β,γ-allenic diols 3b and 3d) to an allenic carbon atom. Regio- and stereocontrol issues are mainly influenced by the nature of the metal catalysts and substituents. Topics: Alcohols; Alkadienes; Catalysis; Cyclization; Furans; Gold; Lanthanum; Metals; Molecular Structure; Oxepins; Palladium; Platinum; Pyrans; Salts; Stereoisomerism	2010

Article

Year

Metal-catalyzed cycloetherification reactions of β,γ- and γ,δ-allendiols: chemo-, regio-, and stereocontrol in the synthesis of oxacycles.

Chemistry (Weinheim an der Bergstrasse, Germany), 2010, Nov-22, Volume: 16, Issue:44

Versatile routes that lead to a variety of functionalized enantiopure tetrahydrofurans, dihydropyrans, and tetrahydrooxepines are based on chemo-, regio-, and stereocontrolled metal-catalyzed oxycyclization reactions of β,γ- and γ,δ-allendiols, which were readily prepared from (R)-2,3-O-isopropylideneglyceraldehyde. The application of Pd(II), Pt(II), Au(III), or La(III) salts as the catalysts gives controlled access to differently sized oxacycles in enantiopure form. Usually, chemoselective cyclization reactions occurred exclusively by attack of the secondary hydroxy group (except for the oxybromination of phenyl β,γ-allenic diols 3b and 3d) to an allenic carbon atom. Regio- and stereocontrol issues are mainly influenced by the nature of the metal catalysts and substituents.

Topics: Alcohols; Alkadienes; Catalysis; Cyclization; Furans; Gold; Lanthanum; Metals; Molecular Structure; Oxepins; Palladium; Platinum; Pyrans; Salts; Stereoisomerism

2010