Kinetics of thermal [1,7a]-sigmatropic s
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Jun-etsu Igarashi; Masahiko Ikeda; Makoto Sunagawa
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Article
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1996
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Elsevier Science
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English
β 244 KB
The quantitative evaluation of the [1,7a]-sigmatropic rearrangement of vitamin D 3 and its analogs affected by the conformations of the A ring using the 1H-NMR method was described. Although the side chain of the D ring had no effect on the hydrogen migration, the rearrangement was influenced by the