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2005
Halogen compounds
P 0030
Selective Conversion of Epoxides to vic-Halo Alcohols and Symmetrical or
Dihalides by Triphenylphosphine/2,3-Dichloro-5,6-dicyano08- 067 Unsymmetrical
-1,4-benzoquinone (DDQ) in the Presence of Quaternary Ammonium Halides. —
The title mixed-reagent system offers a novel and simple method for the selective conversion of epoxides to either their corresponding vic-halo alcohols, e.g. (II), (IV), and
vic-symmetrical dihalides, e.g. (VI), or vic-unsymmetrical dihalides such as (VII)
depending on the molar ratio of the reagents to the epoxides. — (IRANPOOR*, N.;
FIROUZABADI, H.; AGHAPOUR, G.; NAHID, A.; Bull. Chem. Soc. Jpn. 77 (2004)
10, 1885-1891; Dep. Chem., Coll. Sci., Shiraz Univ., Shiraz 71454, Iran; Eng.) —
H. Hoennerscheid
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