Chemistry of Heterocyclic Compounds p. 1078 - 1081 (1987)
Update date:2022-08-05
Topics:
Przhiyalgovskaya, N. M.
Kon'kov, L. I.
Kurkovskaya, L. N.
Mandzhikov, V. F.
Enaminohydroxyketones, formed from 1,3,3-trimethyl-2-methyleneindoline and ortho-acetoxyaromatic acid chlorides, are converted by heating with phosphorus oxychloride in dichloroethane and subsequent treatment with alkali to 4-chlorosubstituted spiropyrane
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