Quinoxalinecarboxylic acids esterification

This chapter covers not only nuclear and extranuclear quinoxahnecarboxylic acids (and anhydrides) but also the carboxylic esters, acyl halides, carboxamides, carbohydrazides, carbonitriles, carbaldehydes, and (ketonic) acyl derivatives of quinoxaline a few related speceis are also included. To avoid repetition, the interconversions of these quinoxaline derivatives are discussed only at the first opportunity thus the esterification of quinoxalinecarboxylic acids in covered as a reaction of carboxylic acids rather than as a preparative route to carboxylic esters, simply because the section on carboxylic acids precedes that on carboxylic esters. To minimize any confusion, appropriate cross-references have been inserted. 

Many such esters, both nuclear and extranuclear, have been made by primary synthesis (see Chapter 1) or by esterification of quinoxalinecarboxylic acids (see Section 7.1.2). The remaining methods are illustrated by the following classified examples. 

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See also in sourсe #XX -- [ ]

See also in sourсe #XX -- [ ]

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