Enantioselective preparation of 3,4,5-tr
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Akio Kamimura; Yukio Kaneko; Ayaki Ohta; Akikazu Kakehi; Haruhiko Matsuda; Shuji
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Article
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1999
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Elsevier Science
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French
β 241 KB
Regio-and stereoselective 1,3-dipolar cycloaddition of nitrile oxide to optically active asilyl allyl alcohol provides a useful preparation of 3,4,5-trisubstituted 4,5-dihydroisoxazoles, which are readily converted into chiral 4-substituted 5,6-dihydro-4H-[ 1,2]-oxazines in 73-100% yields on treatme