<紀要論文>
Synthetic Photochemistry. XLIII. Chromium (II) Chloride-Mediated Reductive Condensations of (3S)- and (3R)-1-Iriden-7-als with (3S)-7-Chloro-1-iridenes. ^1H NMR Spectral Differentiation of the Stereochemistry

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概要 The chromium (II) chloride-mediated condensations of the several (3S)-and (3R)-1-iriden-7-als with (3S)-7-chloro-1-iridenes, were carried out. Due to a large steric hindrance from the C_3-side chain o...f the iridenes, stereochemistry of resultant condensates always possessed cis-geometry for the C-11 methyl and the C-14 C_3-substituents. The ^1H NMR chemical shift comparisons established the orientation of the hydroxyl groups on the C-1.続きを見る

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登録日 2009.04.22
更新日 2017.03.22