期刊
JOURNAL OF ORGANIC CHEMISTRY
卷 76, 期 2, 页码 618-622出版社
AMER CHEMICAL SOC
DOI: 10.1021/jo1021508
关键词
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资金
- Ministry of Education, Culture, Sports, Science and Technology, Japan [WAKATE B-1975011]
We synthesized chiral-substituents modified pillar[5]arene for the first time. The chiral-substituents modified pillar[5]arene showed planar chirality and interconversion between (pS) and (pR) forms took place quickly. The planar chirality was switched by temperature, solvents, and addition of achiral guest. As the measurement temperature increased, the diastereomeric excess was decreased. The diastereomeric excesses were high in low-permittivity solvents, while a low diastereomeric excess was observed in high-permittivity solvents. Addition of achiral guest induced an increase of negative CD intensities.
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