Big Chemical Encyclopedia

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

Articles Figures Tables About

2,3-Quinoxalinedicarboxylic anhydride

Quinoxalinedicarboxylic anhydride (47) and 2-amino-4,5,6,7-tetrahydroben-zo[Z ]thiophene-2-carboxylic acid (48) gave 3-[iV-(3-carboxy-4,5,6,7-tetrahy-drobenzo[/7]thien-2-yl)carbamoyl]-2-quinoxalinecarboxylic acid (49) (EtOH, reflux, 30 min 80% analogs likewise). [Pg.325]

Bromo-6-quinoxalinecarbonyl bromide 6-Bromo-2,3-quinoxalinedicarboxylic acid 6-Bromo-2,3-quinoxalinedicarboxylic anhydride 6-Bromo-2,3(1/7,4/7)-quinoxalinedione 6-Bromoquinoxaline 1,4-dioxide... [Pg.376]

Chloro-2,3-quinoxalinedicarboxylic acid 6-Chloro-2,3-quinoxalinedicarboxylic anhydride 2-Chloro-5,8(1 H, 4//)-quinoxalinedione... [Pg.387]

Note-. Although linear anhydrides of quinoxalinecarboxybc acids appear to be unrepresented in the literature, some cycbc quinoxalinedicarboxylic anhydrides are well known. [Pg.322]

Dimethyl-2,3-quinoxalinedicarboxylic acid (32) gave 6,7-dimethylquinox-alinedicarboxylic anhydride (33) (Ac20, reflux %).401... [Pg.323]

See other pages where 2,3-Quinoxalinedicarboxylic anhydride is mentioned: [Pg.376]    [Pg.432]    [Pg.392]    [Pg.396]    [Pg.432]    [Pg.376]    [Pg.432]    [Pg.392]    [Pg.396]    [Pg.432]   


SEARCH



© 2024 chempedia.info