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Quinazoline synthesis

Pyrazolopyrimidinones C NMR, 5, 308 methylation, 5, 310 synthesis, 5, 329 Pyrazolopyrimidinones, thioxo-synthesis, 5, 324 Pyrazoloquinazolines synthesis, 5, 317, 322 Pyrazolo[ 1,5-n]quinazolines synthesis, 5, 273 Pyrazolo[ 1,5-c]quinazolines synthesis, 5, 324 Pyrazolo[2,3-n]quinazolines synthesis, 3, 378 Pyrazoloquinazolinones synthesis, 5, 342 Pyrazolo[4,3-/]quinazolinones synthesis, 5, 273 Pyrazolo[4,3-g]quinazolinones synthesis, 5, 273 Pyrazolo[3,4-/]quinolines synthesis, 5, 273 Pyrazolo[4,3-/]quinolines synthesis, 5, 273 Pyrazolo[l,5-n]quinoxalines synthesis, 5, 339 Pyrazolo[3,4-6]quinoxalines synthesis, 5, 272... [Pg.779]

Taylor and Patel describe a quinazoline synthesis (Scheme 93) transforming the iminophosphorane of anthranonitrile with isocyanate to car-bodiimide 254. Addition of ammonia in tetrahydrofuran (THF) leads to guanidine 255, which affords with the adjacent nitrile function quinazoline derivatives 256 (91JHC1857). [Pg.213]

Other examples this type of quinazoline synthesis include the formation of the thione analog 752, by displacement of bromine from thiourea 751 <2003ARK(x)434>, and the imino compound 754, which could be formed by heating the guanidine derivative 753 in DMF, without the need for any added base <2005RJ01071>. [Pg.205]

Quinazoline synthesis, When 3- nitroso-2-phcnylindole (1) is heated with 3 moles of phosphoryl chloride (or tosyl chloride) in tetramelhylene sulfonc (I, 1144 1145,... [Pg.390]

From A -Aryinitrilium Salts, A -Aryliraidoyl Chlorides, or A-Arylimidates, and Nitriles (Meerwein s Quinazoline Synthesis) ... [Pg.65]

Niementowski quinazoline synthesis. Formation of 4-oxo-3,4-dihydroquinazolines by cycli-zation of the reaction products of anthranilic acid and amides. [Pg.888]

Aza-Wittig Methodology in Quinazoline Synthesis (Iminophosphorane Mediated Synthesis)... [Pg.119]

The striking improvement in the Niementowski quinazoline synthesis [156, 157] has been fulfilled using microwave irradiation by Besson et al. [158,159] (Scheme 7). Using microwave irradiation and/or Appel s salt, new efficient routes to various substituted and fused quinazolines have been developed by Besson et al. [158,159] and also by others [ 160,161]. [Pg.125]

Scheme Microwave-assisted Niementowski quinazoline synthesis [158,159]... Scheme Microwave-assisted Niementowski quinazoline synthesis [158,159]...
See other pages where Quinazoline synthesis is mentioned: [Pg.914]    [Pg.914]    [Pg.462]    [Pg.914]    [Pg.914]    [Pg.24]    [Pg.65]    [Pg.69]    [Pg.914]    [Pg.914]    [Pg.429]    [Pg.296]    [Pg.914]    [Pg.914]    [Pg.462]    [Pg.113]    [Pg.113]    [Pg.113]    [Pg.113]    [Pg.113]    [Pg.113]    [Pg.124]    [Pg.125]   
See also in sourсe #XX -- [ Pg.273 ]

See also in sourсe #XX -- [ Pg.625 , Pg.626 , Pg.627 , Pg.628 , Pg.629 , Pg.630 , Pg.631 , Pg.632 , Pg.633 , Pg.634 , Pg.635 ]

See also in sourсe #XX -- [ Pg.208 ]

See also in sourсe #XX -- [ Pg.273 ]



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4- -Quinazolines, synthesis

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