Synthesis of Unsymmetrical 1, 4-Benzoxazino-(2,3b)-Phenoxazines

K .G. Ojha* , Neha Mathur, Mahaveer Kawadiya and Mukesh Tanwar

P.G. Department of Chemistry S .D. Govt College, Beawar -305 901 India.

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ABSTRACT:

Unsymmetrically substituted 6,13-dihalo-(1,4)-benzoxazino (2,3 b)-phenoxazines (V) have been synthesised by cyclisation of corresponding 2,5-diarylamino 3,6-dihalo-1,4-benzoquinoes (IV). Compounds (IV) were prepared by condensation of arylamine (1) with chloranil/bromanil (II) in the molar ratio of 1:1 and by further condensation of (III) with different arylamines.

KEYWORDS:

6,13-dihalo-(1,4)-benzoxazino (2,3 b)-phenoxazines (V); 2;5-diarylamino; 3; 6-dihalo-1; 4-benzoquinoes (IV)