Highly diastereoselective epoxidation of protected α-amino alkenes catalyzed by ruthenium porphyrin/Cl2PyNO system was written by Sun, Li;Du, Can-Ping;Qin, Jie;You, Jing-Song;Yang, Meng;Yu, Xiao-Qi. And the article was included in Journal of Molecular Catalysis A: Chemical in 2005.Recommanded Product: 133467-01-3 This article mentions the following:
Protected α-amino epoxides, e.g. I, were successfully obtained in high threo-selectivity (up to 99%) under mild reaction conditions by using carbonyl 5,10,15,20-tetra(2,6-dichlorophenyl)porphyrin ruthenium(II) [Ru(TDCPP)CO] as catalyst and 2,6-dichloropyridine N-oxide (Cl2PyNO) as oxidant. In the experiment, the researchers used many compounds, for example, Boc-D-Leu-OMe (cas: 133467-01-3Recommanded Product: 133467-01-3).
Boc-D-Leu-OMe (cas: 133467-01-3) belongs to esters. Esters perform as high-grade solvents for a broad array of plastics, plasticizers, resins, and lacquers, and are one of the largest classes of synthetic lubricants on the commercial market. Polyesters are important plastics, with monomers linked by ester moieties. 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. This ability to participate in hydrogen bonding confers some water-solubility.Recommanded Product: 133467-01-3
Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics