Synthesis and Spectral Studies of Some Novel 2,5,9,10-Tetrahydro [7,8-g]benzo-8-arylpyrazolo[4,5-e][1,5-b]benzoxazonine via Phase Transfer Catalysis |
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Authors: | Vijai N Pathak Ranjana Pathak Ragini Gupta Chandra K Oza |
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Institution: | Department of Chemistry , University of Rajasthan , Jaipur, 302004, India |
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Abstract: | Treatment of 1H-4,5-dihydro-3-aryl-5-(2-hydroxyaryl)pyrazole with o-dibromoxylene under liquid-liquid phase transfer catalytic conditions using tetra-n-butylammonium hydrogen sulphate or 18]-crown-6 as PT catalyst, benzene/chloroform as organic phase and 50% aqueous potassium hydroxide as second phase, afforded novel 2,5,9,10-tetrahydro 7,8-g] benzo-8-arylpyrazolo4,5-e] 1,5-b] benzoxazonines. |
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Keywords: | Cyclophanes Thermolysis Suzuki coupling Phenanthridinone |
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