support from the National Natural Science Foundation of China (20932004, 21072093);the National Basic Research Program of China (2011CB808600);the Program for New Century Excellent Talents in University (NCET-07-0425);the Doctoral Fund of Ministry of Education of China (20090091110017)
Two new bis-imidazolinium salts (4a, 4b) have been synthesized as precursors of N-heterocyclic carbenes (NHCs) from the commercially available (R)-2,2′-dihydroxy-1,1′-binaphthalene. The two bis-imidazolinium salts w...