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3- Bromomethyl-2 1 // -quinoxalinone

Benzenediamine (355) and 3-bromomethyl-4-methyl-2,5-dihydro-2,5-furan-dione (2-bromomethyl-3-methylmaleic anhydride 356) gave 3-(l-carboxy-vmyl)-3-methyl-3,4-dihydro-2(17/)-quinoxalinone (357) with loss of hydrogen bromide (CHCI3, — 15°C 20°C, 4 h 86%) a rational mechanism was... [Pg.48]

Bromomethyl-l-methyl-2(l//)-quinoxalinone (268, R = Br) gave l-methyl-3-phenoxymethyl-2(17/)-quinoxalinone (268, R = OPh) (PhOH, NaOH, Me3PhCH2NCl, CHCI3-H2O, 50°C, tic monitored 41% analogs like-wise). 5... [Pg.181]

Bromomethyl-6,7-dimethoxy-l-methyl-2(l//)-quinoxalinone reacts with many fatty and other acids (K2CO3, 18-crown-6, MeCN, 80°C, 20 min) to afford analytically useful fluorescent esters. " ... [Pg.183]

The following fluorescent alkylating agents have been introduced as pre-chromatographic reagents 9-bromo-methylacridine [480], 3-bromomethyl-6,7-dimethoxy-l-methyl-2(lH)-quinoxalinone [481], naphthacyl bromide (2-bromoacetonaphthone) [482, 483], p-(anthroyloxy)-phenacyl bromide (panacyl bromide) [484], 1-bromo-acetylpyrene [485], 9-chloromethy[anthracene [486], and 9-anthryldiazomethane [487, 488]. [Pg.202]

Bromomethyl)-6,7-(methylenedioxy)-1 -methyl-2( 1 -quinoxalinone, B-00528 1 -(Bromomethyl)-4-nitrobenzene, B-00530 >(Bromomethyl)pentafluorobenzene,... [Pg.1326]

See other pages where 3- Bromomethyl-2 1 // -quinoxalinone is mentioned: [Pg.177]    [Pg.184]    [Pg.374]    [Pg.375]    [Pg.375]    [Pg.177]    [Pg.184]    [Pg.374]    [Pg.375]    [Pg.440]    [Pg.1793]    [Pg.1924]    [Pg.38]    [Pg.467]    [Pg.984]    [Pg.1326]   


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