Syntheses of p-tert-butyloxocalix[4]-, [5]-, and [6]arenes and their behavior in solution

Article abstract of DOI:10.1016/0040-4039(96)01287-7

p-tert-Butyloxocalix[4]-, [5]-, [6]arenes were synthesized by a stepwise procedure. NMR studies demonstrated that strong intramolecular hydrogen bonding between the bridging CO and neighboring phenolic OH groups in the oxocalixarenes weakened the circular