Synthetic hydrogen bonding receptors as models of transacylase enzymes
摘要:
A family of synthetic receptors has been prepared containing a barbiturate binding site and an appended thiol nucleophile. These are shown to cause large accelerations in the thiolysis reactions of barbiturate active ester derivatives. The size of the acceleration is shown to depend critically on the length and flexibility of the spacer that links the thiol to the receptor.
selective increase of the fraction of the [(1a)2Cu] or [(1b)2Pd] complex depending on the Janus substrate bonding recognition groups have been synthesized. Their assembly by metal ions such as CuI and PdII having different used. Largest enhancements are observed for those Janus substrates that may be expected to display highest coordination geometries generates different receptor architectures for the
Rudkevich, Dmitry M.; Shivanyuk, Alexander N.; Brzozka, Zbigniew, Angewandte Chemie, 1995, vol. 107, # 19, p. 2300 - 2302
作者:Rudkevich, Dmitry M.、Shivanyuk, Alexander N.、Brzozka, Zbigniew、Verboom, Willem、Reinhoudt, David N.
DOI:——
日期:——
Synthetic hydrogen bonding receptors as models of transacylase enzymes
作者:Paolo Tecilla、Vrej Jubian、Andrew D. Hamilton
DOI:10.1016/0040-4020(94)00907-c
日期:1995.1
A family of synthetic receptors has been prepared containing a barbiturate binding site and an appended thiol nucleophile. These are shown to cause large accelerations in the thiolysis reactions of barbiturate active ester derivatives. The size of the acceleration is shown to depend critically on the length and flexibility of the spacer that links the thiol to the receptor.
A Multiple Hydrogen-Bond Scaffold Based on Dipyrimidin-2-ylamine
作者:Serge H. M Söntjens、Joris T. Meijer、Huub Kooijman、Anthony L. Spek、Marcel H. P. van Genderen、Rint P. Sijbesma、E. W. Meijer
DOI:10.1021/ol016750a
日期:2001.11.1
A multiple hydrogen-bond array based on dipyrimidin-2-ylamine is presented, which is easily accessible. The influence of a preorganizing intramolecular hydrogen bond, tautomeric equilibria, and steric effects on the association behavior were investigated. X-ray diffraction shows that the molecules feature an ADA (acceptor-donor-acceptor) array of hydrogen-bonding sites in the solid state. The array