Synthesis of 2"-bromo-8-methylspiro(4H-3,1-benzooxazine-4,1"-cyclopentan)-2(1H)-one and 2-amino-2"-bromo-8-methylspiro(4H-3,1-benzooxazine-4,1"-cyclopentane) from 6-(cyclopent-1-enyl)-2-methylaniline |
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| Authors: | Gataullin,R. R.,Afon" kin,I. S.,Fatykhov,A. A.,Spirikhin,L. V.,Abdrakhmanov,I. B. |
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| Affiliation: | (1) Institute of Organic Chemistry, Ufa Research Center of the Russian Academy of Sciences, 71 prosp. Oktyabrya, 450054 Ufa, Russian Federation |
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| Abstract: | The reaction of 6-(cyclopent-1-enyl)-N-ethoxycarbonyl-2-methylaniline with Br2 or its reaction with NH3 followed by the reaction with Br2 afforded 2"-bromo-8-methylspiro(4H-3,1-benzooxazine-4,1"-cyclopentan)-2(1H)-one and 2-amino-2"-bromo-8-methylspiro(4H-3,1-benzooxazine-4,1"-cyclopentane), respectively. |
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| Keywords: | alkenylanilines ureas halocyclization 3,1-benzooxazines |
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