Journal of Organic Chemistry p. 2632 - 2638 (1989)
Update date:2022-08-03
Topics:
Tashiro, Masashi
Watanabe, Tetsuya
Tsuge, Akihiko
Sawada, Tsuyoshi
Mataka, Shuntaro
8,16,24,32-Tetramethyl<2.2.2.2>- and 8,16,24-trimethyl<2.2.2>metacyclophane (9 and 10) were prepared by using the tert-butyl group as a positional protective group.Friedel-Crafts acylation of 9 and 10 afforded the corresponding ketones, 12 and 13, respect
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