1020665-76-2Relevant academic research and scientific papers
Tether-free immobilized bifunctional squaramide organocatalysts for batch and flow reactions
Kardos, Gyoergy,Soos, Tibor
supporting information, p. 4490 - 4494 (2013/07/26)
This paper describes the preparation of highly efficient, easily accessible, and robust immobilized bifunctional organocatalysts. There was no need to employ any tether to secure high enantio- and diastereoselectivities in various Michael addition reactions. The synthetically useful Michael adducts were obtained within reasonable reaction times with the advantage of easy product isolation and the possibility of automation by using a flow chemistry apparatus. Easily accessible, robust, and cheap immobilized organocatalysts are developed and used to prepare Michael adducts in excellent yields with excellent enantioselectivities, even on the gram scale. Copyright
Chiral amine-thioureas bearing multiple hydrogen bonding donors: Highly efficient organocatalysts for asymmetric Michael addition of acetylacetone to nitroolefins
Wang, Chun-Jiang,Zhang, Zhi-Hai,Dong, Xiu-Qin,Wu, Xiao-Jun
, p. 1431 - 1433 (2008/12/21)
New bifunctional organocatalysts amine-thioureas bearing multiple hydrogen bonding donors were synthesized and applied in catalytic asymmetric Michael addition of acetylacetone to aryl and alkyl nitroolefins. Multiple hydrogen bonding donors play a signif
