Discotic liquid crystals of transition metal complexes, 31: establishment of mesomorphism and thermochromism of bis[1,2-bis(4-n-alkoxyphenyl)ethane-1,2-dithiolene]nickel complexes
Discotic liquid crystals of transition metal complexes, 31: establishment of mesomorphism and thermochromism of bis[1,2-bis(4-n-alkoxyphenyl)ethane-1,2-dithiolene]nickel complexes
Structurally-unusual calix[4]arene derivatives generated by intra- and intermolecular McMurry reactions
作者:Pavel Lhoták、Seiji Shinkai
DOI:10.1016/0040-4039(95)02222-8
日期:1996.1
A new class of calix[4]arenederivatives with highly strained structures has been synthesized by intramolecular reductive dimerization of appropriate formyl groups in the presence of low-valent titanium agents (so-called McMurryreaction). New derivatives possessed very interesting molecular structures with upper rims intramolecularly connected by a CHCH bond and are immobilized either in cone or