Stereoselective C-alkylation of di-imine macrocycles: a versatile route to a series of meso-dialkyl-substituted macrocyclic tetramines
作者:Kim Henrick、Patricia M. Judd、Philip G. Owston、Roger Peters、Peter A. Tasker、Ralph W. Turner
DOI:10.1039/c39830001253
日期:——
Macrocycles containing two o-iminoanilino units undergo stereoselectiveC-alkylation on treatment with Grignard reagents or lithium alkyls to give the meso-dialkyl-substitutedmacrocyclic tetra-amines.
HENRICK, K.;JUDD, P. M.;OWSTON, P. G.;PETERS, R.;TASKER, P. A.;TURNER, R.+, J. CHEM. SOC., CHEM. COMMUN., 1983, N 21, 1253-1254
作者:HENRICK, K.、JUDD, P. M.、OWSTON, P. G.、PETERS, R.、TASKER, P. A.、TURNER, R.+
DOI:——
日期:——
Non-template synthesis of ‘N<sub>4</sub>’ macrocyclic imine ligands with variable ring sizes: the importance of intramolecular hydrogen-bonding. X-Ray crystal structures of three macrocyclic and two open-chain ligands
作者:Philip G. Owston、Roger Peters、Edward Ramsammy、Peter A. Tasker、Jill Trotter
DOI:10.1039/c39800001218
日期:——
Di-imine tetra-aza macrocycles with an extensive range of ringsizes can be isolated by simple condensations without recourse to ‘metal-ion template’ or ‘high-dilution’ reactions, provided the rings can form intramolecular hydrogen bonds to reduce unfavourable lone-pair–lone-pair interactions between the nitrogen atoms.
Complexation of lop-sided 16- and 17-membered tetraaza macrocycles containing fused dibenzo substituents with zinc(II) and cadmium(II)
作者:Philip J. Baillie、Nick Choi、Leonard F. Lindoy、Mary McPartlin、Harold R. Powell、Peter A. Tasker
DOI:10.1039/dt9960003039
日期:——
their zinc(II) and cadmium(II) complexes have been prepared and characterized. Crystal structures of both new macrocycles and of their respective cadmium(II) complexes have been determined. The 16-membered macrocycle yields a pseudo-square-pyramidal cadmium(II) complex whereas the 17-membered one forms a distorted-octahedral complex. Comparison of these structures with those for the cadmium(II) complexes