Medium-Sized Cyclophanes.Part 17. Formylation of (n.2)Metacyclophanes.-Formylation of cyclophanes, e.g. (I), proceeds para to the methyl substituents. Cyclophanes of type (V) undergo ipso-formylation. -(YAMATO, T.; MATSUMOTO, J.; KABU, S.; TAKEZAKI, Y.; TASHIRO, M.; J.
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