American Chemical Society
ja0659323_si_001.pdf (345.89 kB)

Competitive Chemisorption between Pairs of Cinchona Alkaloids and Related Compounds from Solution onto Platinum Surfaces

Download (345.89 kB)
journal contribution
posted on 2006-12-27, 00:00 authored by Zhen Ma, Francisco Zaera
Quinoline-derived compounds exhibit the following relative chemisorption strengths from CCl4 solutions onto platinum surfaces, as determined by in-situ infrared spectroscopy:  quinine, quinidine > cinchonidine > cinchonine > 6-methoxyquinoline > lepidine > quinoline. This sequence explains nonlinear enantioselectivity effects with cinchona chiral modifiers in hydrogenation catalysis.