期刊
JOURNAL OF COMBINATORIAL CHEMISTRY
卷 10, 期 5, 页码 741-745出版社
AMER CHEMICAL SOC
DOI: 10.1021/cc800093q
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资金
- Russian Academy of Sciences [P-8]
A convenient method of synthesis of substituted and annulated 2-amino-spiro[(3'H)-indol-3',4-(4H)-pyrans] at mild conditions and in good yields is developed. Three component reaction of wide variety of substituted isatins, cyanoacetic acid derivatives, and carbonyl compounds or phenols gives the target compounds. Forty new spiropyrans were obtained, and their structures were proved by elemental analysis and H-1 NMR and IR spectral data. It is shown that the use of a not very large set of starting compounds can lead to the synthesis of a thousand-member 2-amino-spiro[(3'H)-indol-3',4-(4H)pyran] library.
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