Diastereoselectivity and Reactivity in t
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Helena Felber; Günther Kresze; Roland Prewo; Andrea Vasella
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Article
📅
1986
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John Wiley and Sons
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German
⚖ 631 KB
The structure of the a-chloronitroso ether I, obtained from the hydroximolactone 2 and tert-butyl hypochlorite (89 %), was established by X-ray crystallographic analysis. The [4 + 2 1 cycloadditions of 1 with the dienes 3 and %I1 led to the N-unsubstituted 3,6-dihydro-2H-1,2-oxazines 6 and 12-16 in