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Molecules 2009, 14(6), 2147-2159; doi:10.3390/molecules14062147
Article

Cyclization of Hydrazones of 2-Acetyl-1-naphthol and 1-Acetyl-2-naphthol with Triphosgene. Synthesis of Spiro Naphthoxazine Dimers

1, 1, 1, 1, 2 and 1,*
Received: 25 April 2009 / Revised: 15 May 2009 / Accepted: 5 June 2009 / Published: 12 June 2009
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Abstract

Cyclization of hydrazones derived from 2-acetyl-1-naphthol and 1-acetyl-2-naphthol with triphosgene gave naphtho[1,2-e]-1,3-oxazines, naphtho[2,1-e]-1,3-oxazines or their spiro dimers depending on the molar ratio of triphosgene used for the cyclization.
Keywords: 2-acetyl-1-naphthol; 1-acetyl-2-naphthol; triphosgene; naphthoxazine; spiro naphthoxazine 2-acetyl-1-naphthol; 1-acetyl-2-naphthol; triphosgene; naphthoxazine; spiro naphthoxazine
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Al-Bogami, A.S.; Al-Majid, A.M.; Al-Saad, M.A.; Mousa, A.A.; Al-Mazroa, S.A.; Alkhathlan, H.Z. Cyclization of Hydrazones of 2-Acetyl-1-naphthol and 1-Acetyl-2-naphthol with Triphosgene. Synthesis of Spiro Naphthoxazine Dimers. Molecules 2009, 14, 2147-2159.

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