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Chiral discrimination in photochromic helicenes. | LitMetric

A photoresponsive dithienylethene derivative bearing chiral pinene-based arms underwent a stereoselective photoinduced cyclization reaction to produce greater than 98% of a single diastereomer. The magnitude of the optical rotation changed as much as Delta[alpha]373 = 8698 degrees upon alternate irradiation with 400 nm and greater than 434 nm light.

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Source
http://dx.doi.org/10.1021/ja050190jDOI Listing

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