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37.2.1.3.1 Method 1: Chromium-Mediated Epoxidation

DOI: 10.1055/sos-SD-037-00140

Adolfsson, H.Science of Synthesis, (200837241.

Chromium(V) complexes generated from chromyl nitrate [CrO2(NO3)2] are known to epoxidize alkenes, although these reactions are strictly stoichiometric with respect to the metal reagent.[‌2‌,‌52‌] The use of terminal oxidants like hydrogen peroxide or alkyl hydroperoxides leads only to decomposition of the oxidant. However, chromiumsalen complexes (exemplified by complex 15, see Section 37.2.1.3.1.1, Scheme 16) can be used in catalytic amounts, although the preferred oxidant in these reactions is iodosylbenzene.[‌53‌,‌54‌]

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