Journal of Chemical Research p. 661 - 664 (2010)
Update date:2022-08-06
Topics:
Chen, Zhiwei
Yang, Yanyan
Su, Weike
An efficient method for the synthesis of 4-phenyl-2,4-dihydrochromeno[4,3- c]pyrazoles via the cyclisation reaction of the easily available flavanone-4-arylhydrazones with Vilsmeier reagent (Bis(trichloromethyl) carbonate/DMF) has been developed.
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Doi:10.1016/0022-328X(90)85092-D
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