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Substituent Effect on Diastereoselectivity in Photochemistry of Valerophenone

  • Published : 2007.07.20
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Abstract

Valerophenone shows a dramatic shift of photoreactivity by a cyclopropyl group at alpha position to the carbonyl group. By the minor change of structure, the diastereoselectivity of the Yang photocyclization is reversed and the ratio of cyclization to elimination products increases significantly.

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References

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