Synthesis 2001(6): 0845-0848
DOI: 10.1055/s-2001-13402
PAPER
© Georg Thieme Verlag Stuttgart · New York

New Method for the Preparation of 2-Aryl- and 2-Heteroarylcyclohexanones. Synthesis of 6,7,8,9-Tetrahydro-5H-1,3-dioxolo[4,5-b]carbazole

Roberto P. Santosa, Rosangela S. C. Lopesb, Claudio C. Lopes*b
a Universidade Federal do Rio de Janeiro, Instituto de Química, Departamento de Química Orgânica, CT, Bl. A, 5o andar, sala 508, Rio de Janeiro-R.J., 21949 900, Brazil
b Universidade Federal do Rio de Janeiro, Instituto de Química, Departamento de Química Analítica, CT, Bl. A, 5o andar, sala 508, Rio de Janeiro-R.J., 21949 900, Brazil
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Publikationsverlauf

Received 11 May 2000
Publikationsdatum:
24. September 2004 (online)

Abstract

2-Aryl- and 2-heteroarylcyclohexanones were prepared through 1,4-addition of lithiated species to 1-nitro-1-cyclohexene followed by Nef reaction in good yields. As a synthetic application of this method, 6,7,8,9-tetrahydro-5H-1,3-dioxolo[4,5-b]carbazole was synthesized.

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In fact, the method is a refinement of that published by Barltrop-Nicholson; see ref. 6.