Methylation of <i>p</i>-<i>tert</i>-Butylcalix[8]arene. Products Obtained in the Presence of Strong Bases
作者:Francesca Cunsolo、Grazia M. L. Consoli、Mario Piattelli、Placido Neri
DOI:10.1021/jo9805091
日期:1998.10.1
Methylation of p-tert-butylcalix[8]arene with MeI in the presence of strong bases (NaH, BaO/Ba(OH)(2), or Cs(2)CO(3)) in THF has been investigated. Composition of the reaction mixtures differs remarkably from those obtained using weak bases and described in a preceding paper. Several previously unreported methylated products [two dimethoxy- (2(1,5) and 2(1,4)), a trimethoxy- (3(1,2,5)), a tetramethoxy-