1380745-66-3Relevant academic research and scientific papers
Facile synthesis of 2,3-disubstituted benzofurans via DBU-promoted intramolecular annulation of ortho oxyether aroylformates
Liu, Rongfang,Han, Ling,Liu, Jialin,Fan, Binbin,Li, Ruifeng,Qiao, Yan,Zhou, Rong
, p. 3079 - 3088 (2018)
A facile synthesis of 2,3-disubstituted benzofurans from ortho oxyether aroylformates has been developed. Under the mediation of DBU, the intramolecular annulation of ortho oxyether aroylformates proceeds smoothly to provide the corresponding 2,3-disubsti
Synthesis of chiral a-substituted a-amino acid and amine derivatives through Ni-catalyzed asymmetric hydrogenation
Cong, Hengjiang,Dong, Xiu-Qin,Liu, Gongyi,Wang, Heng,Zhang, Xianghe,Zhang, Xumu
supporting information, p. 4934 - 4937 (2020/05/13)
Highly efficient Ni-catalyzed asymmetric hydrogenation of cyclicN-sulfonyl ketimino esters was, for the first time, successfully developed, providing various chiral a-monosubstituted a-amino acid derivatives with excellent results (97-99% yields, 90 to >99% ee). CyclicN-sulfonyl ketimines were also hydrogenated well to afford chiral amine derivatives with 98-99% yields and 97 to >99% ee. The gram-scale asymmetric hydrogenation was performed well with 85% yield and 99% ee using only 0.2 mol% catalyst.
Synthesis of quaternary carbon centered chromans from the reactions of ethyl 2-(2-hydroxyaryl)-2-oxoacetates with allenic ester or allenic sulfone catalyzed by tertiary phosphine and SPTS
Hu, Fangle,Guan, Xiaoyang,Shi, Min
supporting information; experimental part, p. 4782 - 4790 (2012/08/08)
Cyclization reactions of ethyl 2-(2-hydroxyaryl)-2-oxoacetates with ethyl 2,3-butadienoate and allenylsulfone proceeded smoothly in the presence of tertiary phosphine and sodium p-toluenesulfinate (SPTS) to give the corresponding quaternary carbon centere
