Xuange Zhang, Tianyu Lu, Yan Cai, Zihong Yan, Zhiwei Miao
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Synthesis and Structural Characterization of Two Types of Chromene Derivatives Containing Pyrazolone or Indol-2-one: Reaction and Chemoselectivity of Carbonyl and Aldehyde Groups
: Under the catalytic conditions of tetrahydropyrrole, an addition-elimination reaction of chromone aldehyde with methylpyrazolone or 2-indolinone is carried out to obtain two kinds of chromene derivatives containing pyrazolone or indol-2-one. The structures are identified by 1 H NMR, 13 C NMR, HPLC, HRMS and melting point measurements.
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