Other Displacement Reactions of Extranuclear Halogenoquinoxalines

These processes may be considered minor, only in the sense that they have seldom been used in recent years. The following examples illustrate their utility in the right context. [Pg.184]

An example has been given in the first group of Section 3.4.1. [Pg.184]

3-Bis(bromomethyl)quinoxaline (282) gave 3-bromomethyl-2-qumoxalmecar-baldehyde (283) (Mc2CHN02, EtONa, EtOH, 20°C, N2 then substratej, THE, 0°C 25°C, 12h 34%). [Pg.185]

5-Bromomethyl-6,7-dichloro-2,3-dimethoxyquinoxaline (284) gave 6,7-dichloro-5-(3-chloroacetonyl)-2,4-dimethoxyquinoxaline (285) (by treatment of a derived Zn complex with CICH2COCI in the presence of a Pd complex as catalyst 75%. See original paper for considerable detail. ) [Pg.185]

2-Bromomethyl-6,7-dimethyl-3-phenylquinoxaline (286) gave 2-(dimethoxy-phosphinyl)methyl-6,7-dimethyl-3-phenylquinoxaline (287) [P(OMe)3, PhMe, reflux, 5h 45%]. [Pg.185]

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