Time:Jun, 23, 2022 by
A facile method for the construction of the aspidosperma core from indole functionalized with a nonterminal N -allenamides and dimethyl methylenemalonate is described. Various polysubstituted tetracyclic spiroindolines (27 examples) were afforded in good yields (61-90%) with >99:1 dr and >99:1 Z/E selectivity under mild conditions.
Time:Mar, 23, 2022 by
In this review, we summarize in detail the research on RCMP in the last ten years since its birth, mainly focusing on the development and evolution of catalytic systems, photo-induced RCMP and the special applications derived from their inherent characteristics.
Time:Nov, 03, 2021 by
In the past decades, the polyolefin industry has been booming, and the synthesis of polyolefin with unique structure and property has been the constant pursuit of polymer chemists. Until now, scientists have been able to synthesize various polyolefins by regulating monomer structure, catalyst central metal, ligand structure and polymeriza...
Time:Nov, 03, 2021 by
Highly branched polymers are very promising and suitable for a variety of applications. Herein, a series of oil-soluble and branched polymethacrylates are synthesized efficiently via atom transfer radical copolymerization of 2-ethylhexyl methacrylate (EHMA) with different divinyl branchers. More remarkably, for the first time, it is found...
Time:Nov, 02, 2021 by
Ethylene/polar monomer coordination copolymerization offers an attractive way of making functionalized polyolefins. However, ethylene copolymerization with industrially relevant short chain length alkenoic acid remain a big challenge. Here we report the efficient direct copolymerization of ethylene with vinyl acetic acid by tetranuclear n...
Time:Apr, 19, 2021 by
During the 32th annual conference of the Chinese Chemical Society held in Zhuhai, April 19, 2021, Prof. Yong Tang won the Chemical Contribution Award jointly presented by the Chinese Chemical Society (CCS) and China Petroleum and Chemical Corporation.This Award was jointly established by the Chinese Chemical Society and China Petroleum an...