Reactions of 4-oxo-1,3-benzoxazinium perchlorates with sodium borohydride |
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| Authors: | N I Vikrishchuk Yu I Ryabukhin A D Vikrishchuk |
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| Institution: | 1.Southern Federal University,Rostov-on-Don,Russia;2.Astrakhan State Technical University,Astrakhan,Russia;3.Southern Scientific Center of Russian Academy of Sciences,Rostov-on-Don,Russia |
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| Abstract: | Reduction of 4-oxo-1,3-benzoxazinium perchlorates with sodium borohydride depending on the structure of starting salt and
the reaction conditions leads to different products. 2-Alkyl- and 2-phenylsubstituted salts react with sodium borohydride
to give 2,3-dihydro-4-oxo-1,3-benzoxazines. 2-Arylvinyl- and 2-heterylvinyl-substituted perchlorates either form 4-oxo-1,3-benzoxazines
or undergo hydrogenation to arylor heterylethyldihydrobenzoxazinones. |
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