Intramolecular [2 + 2] photocycloaddition. 10. conformationally stable syn-[2.2]metacyclophanes

DOI: 10.1021/ja00009a038

Source and publish data:

Journal of the American Chemical Society p. 3485 - 3489 (1991)

Update date:2022-08-03

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Authors:

Nishimura, Jim

Horikoshi, Yoichiro

Wada, Yasuhiro

Takahashi, Hideo

Sato, Mitsuo

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Article abstract of DOI:10.1021/ja00009a038

Three isomerized 1,2:9,10-diethano-syn-[2.2] metacy elephants 5, 6, and 7 were prepared from cis-1,2-bis(mvinylphenyl)cyclobutane by photocycloaddition. Their yields were 10, 5, and 3%, respectively. ¹H NMR chemical shifts of aromatic protons f

Full text of DOI:10.1021/ja00009a038

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