Synthesis and Structure of Functionalized Homo Heteracalix[2]arene[2]triazines: Effect of All Heteroatom Bridges on Macrocyclic Conformation
作者:Dong-Dong Liang、Mei-Xiang Wang
DOI:10.1021/acs.joc.8b00284
日期:2018.3.16
moieties produced homo calix[2]arene[2]triazine derivatives. In the solid state, (NHNR)2,O2-bridged calix[2]arene[2]triazines with and without a substituent on the upper rim position and (NMe)2,(NHNBoc)2-calix[2]arene[2]triazine adopted a typical partial cone conformation while the heavily twisted 1,3-alternate conformational structures were observed for both (NHNBoc)2,O2-calix[2]arene[2]triazines bearing
functionalized phloroglucinol monoaryl ethers have been synthesized using a two-step procedure. Target ethers were synthesized by coupling electron-deficient aryl fluorides with 3,5-dimethoxyphenol via nucleophilic aromatic substitution (SNAr) in N-methylpyrrolidone and cesium carbonate. Subsequent boron tribromide-mediated demethylation gave a series of phloroglucinol monoaryl ethers in good overall