Synthesis and cycloadditions of a bicycl
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J. Elzinga; R.F. Heldeweg; H. Hogeveen; E.P. Schudde
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Article
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1978
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Elsevier Science
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French
⚖ 212 KB
Diazoketones are widely used as precursors in the preparation of various kinds of ring-systems by reaction with unsaturated substratesI. The reaction of diazoketones with electron-poor alkenes yields pyrazolines'; or, in case of preliminary loss of nitrogen, the corresponding keto-