Allylation of bulky-substituted aromatic aldehydes with allyltrichlorosilanes were catalyzed by axial biscarboline N.N-dioxide esters with high enaiitioselectivities up to 92% e.e. for l-(4-chlorophenyl)-9-methyl-9Hpy...
We thank Beijing Municipal Commission of Edu- cation (No. JC015001200902), Beijing Municipal Natu- ral Science Foundation (Nos. 710201, 2122008), Basic Research Foundation of Beijing University of Technol- ogy (X40 15001201101), Funding Project for Academic Human Resources Development in Institutions ofHigher Learning Under the Jurisdiction of Beijing Municipality (No. PHR201008025), Doctoral Scientific Research Start-up Foundation of Beijing University of Technology (No. 52015001200701) for financial sup- ports.
A series of novel axially chiral 2,2'-bipyridine N,N'-dioxides bearing C1 or C2-symmetry have been synthesized by the use of enantiopure a-amino acids as chiral sources. The absolute stereochemistry of the axial chi...
Project supported by the National Natural Science Foundation of China (Nos. 20732006 and 20972152).
Easily accessible chiral phosphoric acid lb has been applied as efficient organocatalyst for the asymmetric al- lylation of aldehydes with allyltrichlorosilane. In the presence of 20 mol% of lb, the allylation of a br...
1 Results The enantioselective addition of allylic organometallic reagents to aldehydes is a fundamental tool in organic synthesis.The high degree of both diastereo-and enantioselectivity gives the possibility to obta...