Enantioselective Organocatalytic Indole Alkylations. Design of a New and Highly Effective Chiral Amine for Iminium Catalysis
作者:Joel F. Austin、David W. C. MacMillan
DOI:10.1021/ja017255c
日期:2002.2.1
"privileged" structure with representation in over 3000 natural isolates and 40 medicinal agents of diverse therapeutic action. A newstrategy for asymmetric access to this important pharmacaphore has been accomplished that involves the amine catalyzed alkylation of indoles with alpha,beta-unsaturated aldehydes. Central to these studies has been the design of a newchiral amine catalyst that exhibits
EnantioselectiveFriedel-Craftsalkylation of indole with α,β-unsaturatedaldehyde was catalyzed by camphor sulfonyl hydrazine (CaSH) with good enantioselectivity (81-88%).
Enantioselective Friedel‐Crafts Alkylation of Indoles with
<i>α, β</i>
‐Unsaturated Aldehydes Catalyzed by Recyclable Second‐generation MacMillan Catalysts
作者:Mohd Jubair Aalam、Deepa、Surendra Singh
DOI:10.1002/ejoc.202200978
日期:2022.11.18
An efficient protocol for enantioselective Friedel-Crafts alkylation reaction was develoved using recoverable second-generation MacMillan catalysts in the presence of trifluoroacetic acid as a co-catalyst.