High-yield calix[4]pyrroles as alpha beta alpha beta isomers and X-ray structure analysis

Authors
Su, XC Zhou, ZF Zhu, SR Lin, HK Leng, XB Weng, LH Chen, YT
Citation
Xc. Su et al., High-yield calix[4]pyrroles as alpha beta alpha beta isomers and X-ray structure analysis, J CHEM R-S, (11), 2000, pp. 538-539
Citations number
12
Categorie Soggetti
Chemistry
Journal title
JOURNAL OF CHEMICAL RESEARCH-S
ISSN journal
03082342 → ACNP
Issue
11
Year of publication
2000
Pages
538 - 539
Database
ISI
SICI code
0308-2342(200011):11<538:HCAABA>2.0.ZU;2-B
Abstract
Two calix[4]pyrroles as a betaa beta isomers were prepared by the reactions of pyrrole with asymmetry ketones in high yields. In addition, two single crystals of calix[4]pyrrole 2 and 2 . MeOH were solved by X-ray analysis, w hich further proved that either in free form or inclusion complex calix[4]p yrrole 2 is a betaa beta isomer and adopts 1,3-alternate conformation.