Substitutions of Fluorine Atoms and Phenoxy Groups in the Synthesis of Quinoxaline 1,4-di-N-oxide Derivatives†

Ignacio Aldana

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Substitutions of Fluorine Atoms and Phenoxy Groups in the Synthesis of Quinoxaline 1,4-di-N-oxide Derivatives†

机译：喹喔啉1,4-二-N-氧化物衍生物的合成中氟原子和苯氧基的取代†

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The unexpected substitution of fluorine atoms and phenoxy groups attached to quinoxaline or benzofuroxan rings is described. The synthesis of 2-benzyl- and 2-phenoxy-3-methylquinoxaline 1,4-di-N-oxide derivatives was based on the classical Beirut reaction. The tendency of fluorine atoms linked to quinoxaline or benzofuroxan rings to be replaced by a methoxy group when dissolved in an ammonia saturated solution of methanol was clearly demonstrated. In addition, 2-phenoxyquinoxaline 1,4-di-N-oxide derivatives became 2-aminoquinoxaline 1,4-di-N-oxide derivatives in the presence of gaseous ammonia.

机译：描述了连接到喹喔啉或苯并呋喃环上的氟原子和苯氧基的意外取代。 2-苄基和2-苯氧基-3-甲基喹喔啉1,4-二-N-氧化物衍生物的合成基于经典的贝鲁特反应。当溶解在甲醇的氨饱和溶液中时，清楚地表明了与喹喔啉或苯并呋喃环相连的氟原子被甲氧基取代的趋势。另外，在气态氨的存在下，2-苯氧基喹喔啉1，4-二-N-氧化物衍生物变成2-氨基喹喔啉1，4-二-N-氧化物衍生物。

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《Molecules》 |2008年第1期|共10页
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Ignacio Aldana;
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中图分类有机化学;
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机译：喹喔啉1,4-二-N-氧化物衍生物的合成中氟原子和苯氧基的取代。

Substitutions of Fluorine Atoms and Phenoxy Groups in the Synthesis of Quinoxaline 1,4-di-N-oxide Derivatives†

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