Stereospecific 1,2-aryl migration in 2-hydroxy alkyl aryl acetals with PPh3/CCl4. Syntheses of optically active ibuprofen and naproxen

H.R. Sonawane,B.S. Nanjundiah,D.G. Kulkarni,Jaimala R Ahuja

TETRAHEDRON-ASYMMETRY（1991）

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摘要

Treatment of 2-hydroxy acetals (R)-(-)-1 and (R)-(-)-3 with PPh3 and CCl4 resulted in a stereospecific 1,2-aryl migration leading to the asymmetric synthesis of (R)-(-)-2 and (R)-(-)-4 respectively.

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optical activity

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