Towards molecular electronics: a new family of aromatic polyimine chelates substituted with alkyne groups
作者:Jean Suffert、Raymond Ziessel
DOI:10.1016/s0040-4039(00)74877-5
日期:1991.2
Bromo and chloro polyimines react with trimethylsilyacetylene in the presence of Pd(PPh3)2Cl2/CuI and diisopropylamine to give newsubstituted polyimines 1a to 8a. These compounds are deprotected with K2CO3 in MeOH / THF to produce the corresponding terminal alkynes 1b to 8b.
diynes provides access to ditopic bipyridine or terpyridine ligands oligoPy(C&tbd1;C)(4)oligoPy comprising a tetrayne spacer. Quantitative formation of air-stable copper(I) complexes is described for the 6,6'-substitutedligands. A single crystal X-ray structure of complex 22a shows that the two ligands are interlocked around the copper(I) center in a pseudotetrahedral arrangement, similar to the structure
Aromatic Hybrid Foldamer with a Hydrophilic Helical Cavity Capable of Encapsulating Glucose
作者:Ji Young Hwang、Hae-Geun Jeon、Ye Rin Choi、Junyoung Kim、Philjae Kang、Seungwon Lee、Kyu-Sung Jeong
DOI:10.1021/acs.orglett.7b02768
日期:2017.10.20
An indolocarbazole–naphthyridine hybrid oligomer capable of adopting a stable helical conformation was prepared, and its folding properties were thoroughly studied in the solid state and in solution. As a result of folding, a hydrophilic cavity was generated inside the helix wherein monosaccharides were able to be encapsulated in the order of glucose (9.6 × 104 M–1) > galactose (1.0 × 104 M–1) ≫ mannose
制备了能够采用稳定的螺旋构象的吲哚并咔唑-萘啶杂化低聚物,并在固态和溶液中对其折叠性能进行了深入研究。折叠的结果是,在螺旋内部产生了一个亲水腔,单糖能够按照葡萄糖(9.6×10 4 M –1)>半乳糖(1.0×10 4 M –1)≫甘露糖(〜 0)在10%(v / v)DMSO / CH 2 Cl 2中。