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New type chiral calix[4](aza)crowns: synthesis and chiral recognition

✍ Scribed by Yongbing He; Yuanjing Xiao; Lingzhi Meng; Zhenya Zeng; Xiaojun Wu; Cheng-Tai Wu


Publisher
Elsevier Science
Year
2002
Tongue
French
Weight
169 KB
Volume
43
Category
Article
ISSN
0040-4039

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Abstraa: A new type of calix [4]crown containing ester group 3 has been synthesized and selectively nitrated to give 4 or ipso-nitrated to give 6. By nitration a novel calixcrown 5 containing a qninone segment was obtained. These nitrated calixcrowns have been used as chromogenic hosts for complexin