Treatment of (E)-2,4-dimethoxycinnamic acid isopropyl esters with boron trifluoride-diethyl ether in chloroform at room temperature affords various stereoisomeric C-alkylcalix[4]resorcinarenes, which differ in their conformations; the crystal structures of two stereoisomers have been determined and compared with geometries resulting from theoretical calculations.
STRUCTURE AND CONFORMATION OF STEREOISOMERIC C-ISOPROPOXYCARBONYLMETHYLCALIX[4]RESORCINARENES
IACOVINO, Rosa;
1994
Abstract
Treatment of (E)-2,4-dimethoxycinnamic acid isopropyl esters with boron trifluoride-diethyl ether in chloroform at room temperature affords various stereoisomeric C-alkylcalix[4]resorcinarenes, which differ in their conformations; the crystal structures of two stereoisomers have been determined and compared with geometries resulting from theoretical calculations.File in questo prodotto:
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