Big Chemical Encyclopedia

Chemical substances, components, reactions, process design ...

Articles Figures Tables About

3-aryl-2-quinoxalinyl ketenes

Aryl(quinoxalinyl)ketenes 53, generated in the thermolysis of the corresponding hydro-2,3-furandiones 52, undergo [4+2] cyclodimerizations across the a-imidoylketene configuration with the ketene C=C bond as the dienophile to give the cyclodimers 54, in 74-80 % yield... [Pg.250]

Aryl-2-quinoxalinyl(aroyl)ketenes 351, generated in the thermolysis of 3-aroyl-2-(2-aryl-... [Pg.72]

Upon thermolysis 5-aryl-4-quinoxalinyl-2,3-dihydro-2,3-furandiones [3-aryl-2-(2-aryl-4,5-dioxo-4,5-dihydro-3-furyl)quinoxalines] 223 leads to decarbonylation and formation of 3-aryl-2-quinoxalinyl(aroyl)ketenes 224, which can be captured using cychc ketones such as cyclopentanone... [Pg.227]

See other pages where 3-aryl-2-quinoxalinyl ketenes is mentioned: [Pg.242]    [Pg.228]    [Pg.230]   
See also in sourсe #XX -- [ Pg.72 ]



SEARCH



4- [3- -2-quinoxalinyl

© 2024 chempedia.info