NEW APPROACH TO THE SYNTHESIS OF BENZO[ e ]PYRAZOLO[5,1- b] [1,3]OXAZINES
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DOI: 10.1007/6133
Abstract: How to Cite Osyanin, V. A.; Nakushnov, V. Yu.; Osipov, D. V.; Klimochkin, Yu. N. Chem. Heterocycl. Compd. 2010 , 46 , 1027. [ Khim. Geterotsikl. Soedin. 2010 , 1266.] For this article in the English… read more here.
Keywords: synthesis benzo; pyrazolo oxazines; chemistry; benzo pyrazolo ... See more keywords
Rh-Catalyzed C-H Activation, [5 + 2] Cycloaddition/Oxidative for the Synthesis of Highly Functionalized Benzo[f]pyrazolo[1,5-a][1,3]diazepin-6-ones.
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DOI: 10.1021/acs.orglett.5c02561
Abstract: We developed a protocol for the synthesis of highly functionalized benzo[f]pyrazolo[1,5-a][1,3]diazepin-6-ones 3 (BPDOs) from 1-aryl-1H-pyrazol-5-amine derivatives using sulfoxonium ylides. This strategy involved Rh-catalyzed C-H activation and a rare [5 + 2] cycloaddition, with water participating… read more here.
Keywords: synthesis highly; functionalized benzo; activation; highly functionalized ... See more keywords
Regioselective, one-pot, multi-component, green synthesis of substituted benzo[c]pyrazolo[2,7]naphthyridines
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DOI: 10.1039/c9ra09148c
Abstract: An efficient and environmentally benign synthetic protocol has been developed for the synthesis of benzo[c]pyrazolo[2,7]naphthyridine derivatives through regioselective multi-component “on-water” reaction of isatin, malononitrile and 3-aminopyrazole. The Knoevenagel condensation of isatin with malononitrile resulted in… read more here.
Keywords: pot multi; component; multi component; benzo pyrazolo ... See more keywords