In 2017,Khan, Ajmal; Khan, Sardaraz; Khan, Ijaz; Zhao, Can; Mao, Yuxue; Chen, Yan; Zhang, Yong Jian published 《Enantioselective Construction of Tertiary C-O Bond via Allylic Substitution of Vinylethylene Carbonates with Water and Alcohols》.Journal of the American Chemical Society published the findings.Category: esters-buliding-blocks The information in the text is summarized as follows:
An efficient method for the enantioselective construction of tertiary C-O bond via asym. allylic substitution of racemic vinylethylene carbonates with water and alcs. has been developed. Under the cooperative catalysis system of an in situ generated chiral palladium complex and boron reagent in mild conditions, the process allowed rapid access to valuable tertiary alcs. and ethers in high yields with complete regioselectivities and high enantioselectivities. This protocol represented the first example of direct enantioselective formation of a tertiary C-O bond with water as an oxygen donor. The synthetic utilities of the process have been demonstrated by the elaboration of the products into key intermediates of biol. relevant agents, and chiral tertiary cyclic ethers could also be provided through the sequential reactions of the allylic etherification and ring-closing metathesis. In the experimental materials used by the author, we found Methyl 3-hydroxypropanoate(cas: 6149-41-3Category: esters-buliding-blocks)
Methyl 3-hydroxypropanoate(cas: 6149-41-3) belongs to esters with low molecular weight are commonly used as fragrances and found in essential oils and pheromones. Their flexibility and low polarity is manifested in their physical properties; they tend to be less rigid (lower melting point) and more volatile (lower boiling point) than the corresponding amides. Category: esters-buliding-blocks
Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics