Enantioselective Synthesis of Pyrrolizin-1-ones via Lewis Base Catalyzed N-Allylation of <i>N</i>-Silyl Pyrrole Latent Nucleophiles
作者:Markus Lange、You Zi、Ivan Vilotijevic
DOI:10.1021/acs.joc.9b02819
日期:2020.1.17
Pyrrolizidinealkaloids and their derivatives often feature interesting biological activities. A class of substituted 2,3-dihydro-1H-pyrrolizin-1-one derivatives has been explored as a potential treatment for Alzheimer's disease, but enantioselective synthesis of these molecules is still elusive. We report that enantioselective N-allylation of N-silyl pyrrole latent nucleophiles with allylic fluorides
Asymmetric Synthesis of Indole Homo-Michael Adducts via Dynamic Kinetic Friedel–Crafts Alkylation with Cyclopropanes
作者:Steven M. Wales、Morgan M. Walker、Jeffrey S. Johnson
DOI:10.1021/ol4010646
日期:2013.5.17
An enantioconvergent Friedel-Crafts alkylation of indoles with donor-acceptor cyclopropanes is described. The reaction is catalyzed by pybox center dot Mgl(2) and proceeds via a type I dynamic kinetic asymmetric transformation (DyKAT).
Dhanak, Dashyant; Reese, Colin B., Journal of the Chemical Society. Perkin transactions I, 1986, p. 2181 - 2186
作者:Dhanak, Dashyant、Reese, Colin B.
DOI:——
日期:——
Rh<sub>2</sub>(<i>S</i>-biTISP)<sub>2</sub>-Catalyzed Asymmetric Functionalization of Indoles and Pyrroles with Vinylcarbenoids
作者:Yajing Lian、Huw M. L. Davies
DOI:10.1021/ol300632p
日期:2012.4.6
Asymmetric functionalization of N-heterocycles by vinylcarbenoids in the presence of catalytic amounts of Rh-2(S-biTISP)(2) has been successfully developed. This bridged dirhodium catalyst not only selectively enforces the reaction to occur at the vinylogous position of the carbenoid but also affords high levels of asymmetric induction.
DHANAK D.; REESE C. B., J. CHEM. SOC. PERKIN TRANS.,(1986) N 12, 2181-2186