Hangman Salen Platforms Containing Two Xanthene Scaffolds
作者:Jenny Y. Yang、Julien Bachmann、Daniel G. Nocera
DOI:10.1021/jo0613075
日期:2006.11.1
A synthetic strategy for the construction of chiral salen ligands bearingtwo rigid xanthene spacers functionalized with carboxylic acid and estergroups is presented. Suzuki cross-coupling methodology is used to furnish the appropriately functionalized xanthene spacers to a salicyladehyde, which is subsequently condensed with (1R,2R)-(−)-1,2-diaminocyclohexane to produce salen ligands featuring an