title: A calix[2]phenol[2]pyrrole and a fused pyrrolidine-containing derivative.
abstract: The hybrid calix[2]phenol[2]pyrrole 4 and the fused pyrrolidine-containing macrocycle 9 were synthesized from two different isomeric starting materials, namely dimethyl 2-hydroxyisophthalate and 5-hydroxyisophthalate, respectively. The fused species 9 is devoid of obvious substrate binding properties. In contrast, the heterocalix system 4 displays the fluoride-induced conformational changes characteristic of the parent system.
authors.affiliation: Department of Chemistry, Inha University, 253 Yonghyundong Namgu, Inchon 402-751, Republic of Korea.
authors.forename: Kwang-Bok
authors.initials: KB
authors.lastname: Jung
authors.forename: Sung Kuk
authors.initials: SK
authors.lastname: Kim
authors.forename: Vincent M
authors.initials: VM
authors.lastname: Lynch
authors.forename: Dong-Gyu
authors.initials: DG
authors.lastname: Cho
authors.forename: Jonathan L
authors.initials: JL
authors.lastname: Sessler