A new route to construct 1,2-dihydroquinoxaline and 1,4-benzoxazine derivatives stereoselectively and its application to novel pyrazolo[1,5-α]quinoxaline oxides

1,2-Dihydroquinoxaline and 1,4-benzoxazine skeletons were constructed stereoselectively from easily available aryl methyl ketones via a two-step procedure in mild conditions with high yields. Moreover, the application of this reaction provided a convenient approach to novel pyrazolo[1,5-α]quinoxaline oxides.

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