New organic gelalors bearing a porphyrin group: a new strategy to create ordered porphyrin assemblies was written by Tian, Hong Jian;Inoue, Kazuhiko;Yoza, Kenji;Ishi-I, Tsutomu;Shinkai, Seiji. And the article was included in Chemistry Letters in 1998.Electric Literature of C47H36N4O The following contents are mentioned in the article:
Cholesterol-based gelators I bearing a porphyrin moiety were synthesized. (S)-I with a natural C-3 configuration could gelatinize a few solvents whereas (R)-I with an inverted C-3 configuration could not gelatinize any solvent. The absorption and CD spectra for less cohesive (R)-I were changed only to a smaller extent at 10-5?10-2 mol dm-3 whereas more cohesive (S)-I gave a new ¦Ëmax at 444 nm and its corresponding CD band only in the gel phase. The results indicate that “gelation” is a new strategy to create ordered porphyrin assemblies. This study involved multiple reactions and reactants, such as 4-(10,15,20-Tri-p-tolylporphyrin-5-yl)phenol (cas: 57412-08-5Electric Literature of C47H36N4O).
4-(10,15,20-Tri-p-tolylporphyrin-5-yl)phenol (cas: 57412-08-5) belongs to catalyst ligands. Ligand design occupies a central place in organic synthesis and catalysis. Replacing precious metals with cheaper and more environmentally friendly metals is regarded as a highly desirable goal in the field of catalysis.Electric Literature of C47H36N4O
Referemce:
Metal catalyst and ligand design,
Ligand Template Strategies for Catalyst Encapsulation – NCBI