A rapid and efficient entry to synthesis of quino and chromenocarbazoles via Ullmann-Goldberg condensation
A rapid and efficient entry to synthesis of quino and chromenocarbazoles via Ullmann-Goldberg condensation
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Date
2009-08-01
Authors
Meesala, Ramu
Nagarajan, Rajagopal
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Abstract
An efficient two-step method for the preparation of quino and chromenocarbazoles via Ullmann-Goldberg condensation of 3-aminocarbazole and 3-hydroxy-9-ethylcarbazole with o-halobenzoic acids followed by cyclization with POCl3 has been described. © 2009 Elsevier Ltd. All rights reserved.
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Tetrahedron. v.65(31)