56124-48-2Relevant articles and documents
The New Catalyst System: Chloramphenicol Base and Organic Acid Co-catalyzed Enantioselective Alcoholysis of meso-Anhydride
Chen, Lu,Liu, Da-Ming,Ma, Chao,Sun, Chen,Wang, Zhong-Hua,Xiong, Fei,Zhang, Yan-Jun,Zhu, Yi-Ren
, p. 9 - 13 (2022/03/27)
In this study, the synergistic catalytic strategy was developed, which chloramphenicol base and organic acid were used in the same system, the optimal enantioselectivity value and yield (96% yield; 65% ee) was achieved using the binary co-catalyst in the asymmetric alcoholysis reaction of mesoanhydride. Moreover, a hypothetical intermediate between the substrate and the binary co-catalyst which is responsible for stereochemistry control in this catalytic reaction was proposed. In addition, the results of molecular mechanics calculations also have shed light on the corresponding catalytic mechanism.
Novel amide-functionalized chloramphenicol base bifunctional organocatalysts for enantioselective alcoholysis of meso-cyclic anhydrides
Xu, Lingjun,Han, Shuwen,Yan, Linjie,Wang, Haifeng,Peng, Haihui,Chen, Fener
supporting information, p. 309 - 317 (2018/02/19)
A family of novel chloramphenicol base-amide organocatalysts possessing a NH functionality at C-1 position as monodentate hydrogen bond donor were developed and evaluated for enantioselective organocatalytic alcoholysis of meso-cyclic anhydrides. These structural diversified organocatalysts were found to induce high enantioselectivity in alcoholysis of anhydrides and was successfully applied to the asymmetric synthesis of (S)-GABOB.
Reversible Switching and Recycling of Adaptable Organic Microgel Catalysts (Microgelzymes) for Asymmetric Organocatalytic Desymmetrization
Borrmann, Ruediger,Palchyk, Volodymyr,Pich, Andrij,Rueping, Magnus
, p. 7991 - 7996 (2018/09/18)
Adaptable enzyme-mimetic catalysts based on temperature-responsive polymer microgels (microgelzymes) have been developed. By a simple change in the temperature, a microgel catalyst can be reversibly switched into its soluble or precipitated form, thus com