Quality Control of H-D-Phe(4-NO2)-OMe.HClOn September 4, 2019 ,《Chiral Gating for Size- and Shape-Selective Asymmetric Catalysis》 was published in Journal of the American Chemical Society. The article was written by Li, Xiaowei; Zhao, Yan. The article contains the following contents:
A poor or mediocre stereoselectivity is a key roadblock for a chiral catalyst to find practical adoptions. We report a facile method to create a tunable chiral space near a chiral catalyst to augment its selectivity. The space was created rationally through templated polymerization within cross-linked micelles, using readily available amino acid derivatives It provided gated entrance of reactants to the catalyst, enabling a mediocre prolinamide to catalyze aldol condensation in water with excellent yields and ee, in a size- and shape-selective manner. In the part of experimental materials, we found many familiar compounds, such as H-D-Phe(4-NO2)-OMe.HCl(cas: 67877-95-6Quality Control of H-D-Phe(4-NO2)-OMe.HCl)
H-D-Phe(4-NO2)-OMe.HCl(cas: 67877-95-6) belongs to esters. Esters are more polar than ethers but less polar than alcohols. They participate in hydrogen bonds as hydrogen-bond acceptors, but cannot act as hydrogen-bond donors, unlike their parent alcohols. Quality Control of H-D-Phe(4-NO2)-OMe.HCl
Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics