Preparation of some 5,7-diarylcyclohexeno[3,4-d]-1-selena-2,3-diazolyl-6-spiro-5′-(2′, 3′-pyrazolidine / 2′,3′-oxazo- Lidine)-1,4′-diones and 5,7-diaryl- cyclohexeno[3,4-d]-1-thia-2,3-diazolyl-6spiro-5′(2′,3′- pyrazolidine/2′,3′oxazolidine)-1′,4′-diones
Synthesis of the title compounds has been accomplished through dimethyl-2,6-diaryl-4-oxocyclohexane-1,1-dicarboxylates 1. The latter on condensation with NH2NH2.H2O and NH2OH.HCl give 6,10-diaryl-2,3-diazaspiro(
Bhaskar Reddy,Ramana Reddy,Padmavathi
p. 167 - 171
(2007/10/03)
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