Synlett 2015; 26(08): 1031-1038
DOI: 10.1055/s-0034-1380323
letter
© Georg Thieme Verlag Stuttgart · New York

Chemoselective Sequential Reactions for the Synthesis of 12H-Benzo[a]xanthenes and Dihydro-1H-naphtho[1,2-e][1,3]oxazines

Aziz Shahrisa*
Department of Organic and Biochemistry, Faculty of Chemistry, University of Tabriz, Tabriz 5166614766, Iran   Email: ashahrisa@yahoo.com
,
Reza Teimuri-Mofrad
Department of Organic and Biochemistry, Faculty of Chemistry, University of Tabriz, Tabriz 5166614766, Iran   Email: ashahrisa@yahoo.com
,
Mahdi Gholamhosseini-Nazari
Department of Organic and Biochemistry, Faculty of Chemistry, University of Tabriz, Tabriz 5166614766, Iran   Email: ashahrisa@yahoo.com
› Author Affiliations
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Publication History

Received: 07 October 2014

Accepted after revision: 12 February 2015

Publication Date:
12 March 2015 (online)


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Abstract

Novel sequential Betti–Ullmann and Betti–C–H activation reactions for the synthesis of 12H-benzo[a]xanthenes and dihydro-1H-naphtho[1,2-e][1,3]oxazines have been developed. Depending on the used conditions selective Ullmann-type arylation or α-C-H aryloxylation of 2-bromophenyl alkylaminonaphthols occurred. A simple, fast, green, and high-yielding method for the synthesis of aminonaphthols catalyzed by bismuth(III) chloride under solvent-free conditions is reported.

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