Chemistry of novel compounds with multifunctional carbon structure. 9. Molecular design, synthetic studies, and NMR investigation of several efficient chiral …

…, N Itoh, T Satoh, T Koizumi, K Yamaguchi

文献索引：Takeuchi, Yoshio; Itoh, Noriaki; Satoh, Toshihiro; Koizumi, Toru; Yamaguchi, Kentaro Journal of Organic Chemistry, 1993 , vol. 58, # 7 p. 1812 - 1820

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被引用次数: 38

摘要

In order to develop efficient ee-determining reagents potentially superior to MTPA (11, some multifunctional compounds 2-5 were rationally designed. From NMR investigations of the analogous diastereomeric derivatives it was found that the chemical shift differences for each pair of diastereomers (Ab values) for CFPA derivatives 5d-f were approximately five times greater in lgF NMR spectra and two times greater in'H NMR spectra than those of Id- ...