Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1255585 | Chinese Chemical Letters | 2012 | 4 Pages |
Abstract
Novel spiro[dibenzo[a,i]xanthene-14,3′-indoline]-2′,8,13-triones were prepared by the three-component reaction of β-naphthol, isatins, and 2-hydroxy-1,4-naphoquinone in the presence of a catalytic amount of H4SiW12O40. This protocol provides a simple one-step procedure with the advantages of easy work-up, mild reaction conditions and environmentally benign.
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Chemistry
Chemistry (General)
Authors
Li Min Yang, Zhi Kui Yin, Li Qiang Wu,