
Tetrahedron Letters p. 5563 - 5566 (1992)
Update date:2022-09-26
Topics:
Takeuchi
Nishimura
The title compounds were prepared by the photocycloaddition of vinylphenanthrene derivatives in 38-49% yields. This method gave syn-phenanthrenophanes exclusively, although other reported methods gave syn- and anti-isomers together. The syn conformation was proved by several spectroscopic methods.
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