Abstract
Nine 1-[2-(l-substituted)ethyl-3-benzothienyl]-2-(2-methyl-3-benzothienyl)hexafluorocyclopentenes (4-substituted benzoyloxy, N-arylcarbamoyloxy, and aryloxycarbonyloxy) were synthesized. They showed diastereoselective photochromic ring closure upon UV irradiation. Among them, 4-nitro-phenoxycarbonyloxy-substituted compound recorded a remarkable 94% diastereomer excess with 91% conversion to the closed form.
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Kapsamı
Uluslararası
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Type
Hakemli
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Index info
WOS.SCI,WOS.IC
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Language
English
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Article Type
None