Diquinoxalinyl sulfides

Most alkylthioquinoxalines (nuclear and extranuclear) have been made by primary synthesis (see Chapter 1), by alkanethiolysis of halogenoquinoxalines (see Sections 3.2.3 and 3.4.4), or by alkylation of quinoxalinethiones (see Section 5.1.2) the formation of a diquinoxalinyl sulfide during thiolysis of a halogenoqui-noxaline has been noted in Section 3.2.3. 

Alkylthio- and arylthioquinoxalines are potentially valuable intermediates for the preparation of other quinoxalines, but they have seldom been used as such diquinoxalinyl sulfides usually arise only as byproducts. 

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