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This paper was retracted on 4 July 2007, see Molecules 2007, 12(7), 1289.

Molecules 2005, 10(9), 1126-1134; doi:10.3390/10091126

New Multi-1,2,3-Selenadiazole Aromatic Derivatives

*  and
Department of Applied Chemical Sciences, Jordan University of Science and Technology, Jordan
* Author to whom correspondence should be addressed.
Received: 23 April 2005 / Accepted: 30 September 2005 / Published: 30 September 2005
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The aromatic polyketones 3a-d are versatile compounds for the synthesis of the multi-1,2,3-selenadiazole aromatic derivatives 1a-d. The preparation starts with the reaction between the multi-bromomethylene benzene derivatives 2a-d and 4-hydroxy- acetophenone to give compounds 3a-d which are transformed through the reaction with semicarbazide hydrochloride or ethyl hydrazine carboxylate into the corresponding semicarbazones derivatives 4a-d or hydrazones 5a-d. The reaction with selenium dioxide leads to regiospecific ring closure of semicarbazones or hydrazones to give the multi- 1,2,3-selenadiazole aromatic derivatives in high yield.
Keywords: 1; 2; 3-Selenadiazoles; semicarbazones; aromatic derivatives 1; 2; 3-Selenadiazoles; semicarbazones; aromatic derivatives
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Al-Smadi, M.; Ratrout, S. New Multi-1,2,3-Selenadiazole Aromatic Derivatives. Molecules 2005, 10, 1126-1134.

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