the National Natural Science Foundation of China(Nos.21672199,21790333,21925111 and 21702197);the Fundamental Research Funds for the Central Universities(No.WK2060190086).
Main observation and conclusion A new strategy for the generation of the active Pd-alkyl species from aminal via C-N bond activation has been established,in which the formation of zwitterionic intermediate through aza...
Acknowledgement This work was supported by National Natural Science Foundation of China (Nos. 20802075 and No. 21042006).
The enantioselective double Michael reaction of benzofuranone with dienones catalyzed by Cinchona-based primary amines was developed. A number of optically active spirocyclic benzofuranones were obtained in up to 89% ...