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Cinnamaldehyde, o-nitro

Wittig olefination of 2-nitro-Z-cinnamaldehyde (1300) with the phosphonium bromide 1301 led to the diene 1302. The Diels-Alder cycloaddition of 1302 with maleimide (1303), followed by dehydrogenation with DDQ, afforded the phthali-mide 1304. Double deoxygenation of 1304 with triphenylphosphine (PPhs) in collidine gave O-methylarcyiiaflavin B (1305). Finally, heating of 1305 with molten pyridine hydrochloride led to arcyriaflavin B (346) (759) (Scheme 5.215). [Pg.337]

See other pages where Cinnamaldehyde, o-nitro is mentioned: [Pg.31]    [Pg.89]    [Pg.98]    [Pg.53]    [Pg.60]    [Pg.50]    [Pg.31]    [Pg.89]    [Pg.98]    [Pg.53]    [Pg.60]    [Pg.50]    [Pg.53]    [Pg.141]    [Pg.315]    [Pg.15]   
See also in sourсe #XX -- [ Pg.33 , Pg.60 ]

See also in sourсe #XX -- [ Pg.33 , Pg.60 ]

See also in sourсe #XX -- [ Pg.33 , Pg.60 ]

See also in sourсe #XX -- [ Pg.33 , Pg.60 ]

See also in sourсe #XX -- [ Pg.33 , Pg.60 ]



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Cinnamaldehyde

Cinnamaldehyde 2-nitro

O-NITRO

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