A Simple Synthetic Method of trans-5-Aryl and 5-Cyclopropyl Derivatives of 2-Isoxazolin-4-ol via Intramolecular Ring Opening of α,β-Epoxy Ketone Oximes
trans-5-Aryl and 5-cyclopropyl derivatives of 2-isoxazolin-4-ol were conveniently prepared from trans-2-aryl- and 2-cyclopropyl-3-benzoyloxiranes and hydroxylamine hydrochloride in the presence of pyridine via an intramolecular opening of oxirane by the oxygen nucleophile of the oximino group.
Ito, Shoei,Sato, Masahiro
p. 2739 - 2741
(2007/10/02)
AUTOXIDATION OF LITHIO DERIVATIVE OF 2-ISOXAZOLINES
4-Lithio-2-isoxazoline are oxidized to the 4-peroxides or 4-hydroxy derivatives by air or oxygen at -80 deg C.The concentration of oxygen in the solution is a decisive parameter.When it is bubbled into the lithium salt solution, the 4-hydroperoxide deriva
Auricchio, Sergio,Ricca, Aldo
p. 2395 - 2402
(2007/10/02)
4-Hydroxylierung von Isoxazolinen; Synthese von rac-Phytosphingosin (ribo-2-Amino-1,3,4-octadecantriol)
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Schwab, Wilfried,Jaeger, Volker
p. 578 - 579
(2007/10/02)
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