2012. - V. 26. - N 2(131). - P. 54-58
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2-(3-phenylallylidene)-2,3-dihydrofuro[3,2-c]coumarin-3-one - derivative of 2Hfuro[ 3,2-c]chromene-3,4-dione reacts unusually with phenylhydrazine and hydrazinecarboxamide. This reaction proceeds with furanone ring opening and osazone formation or with new heterocyclicring formation.
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