- Epoxidation of 2,3-Dimethyl-2-butene by 3-Bromo-4,5-dihydro-5-hydroperoxy-4,4-dimethyl-3,5-diphenyl-3H-pyrazole
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The uncatalyzed reaction of 2,3-dimethyl-2-butene and 3-bromo-4,5-dihydro-5-hydroperoxy-4,4-dimethyl-3,5-diphenyl-3H-pyrazole produced tetramethylethylene oxide and 3-bromo-4,5-dihydro-5-hydroxy-4,4-dimethyl-3,5-diphenyl-3H-pyrazole in moderate yield.
- Baumstark, Alfons L.,Chrisope, Douglas R.,Landis, Michael E.
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- OXYGEN-ATOM TRANSFER REAGENTS: NEW, REACTIVE α-AZOHYDROPEROXIDES
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3,4,4-Trimethyl-4,5-dihydro-5-hydroperoxy-3,5-diaryl-3H-pyrazoles, synthesized by autoxidation of the corresponding 3,4-dihydro-2H-pyrazoles, are a new type of cyclic α-azohydroperoxide which is of high reactivity in oxygen-atom transfer chemistry.
- Baumstark, A. L.,Dotrong, M.,Vasquez, P. C.
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p. 1963 - 1966
(2007/10/02)
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- OXIDATION OF AMINES AND SULFIDES BY 3-BROMO-4,5-DIHYDRO-5-HYDROPEROXY-4,4-DIMETHYL-3,5-DIPHENYL-3H-PYRAZOLE
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The reaction of 3-bromo-4,5-dihydro-5-hydroperoxy-4,4-dimethyl-3,5-diphenyl-3H-pyrazole with tertiary amines and sulfides produced amine oxides and sulfoxides in high yield with k2s for amines similar to those reported for reaction of amines with a 4a-hydroperoxyflavin.
- Baumstark, Alfons L.,Christope, Douglas R.
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p. 4591 - 4594
(2007/10/02)
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