Synthesis 2014; 46(10): 1303-1310
DOI: 10.1055/s-0033-1340883
special topic
© Georg Thieme Verlag Stuttgart · New York

Efficient and Highly Enantioselective Aerobic Oxidation–Michael–Carbocyclization Cascade Transformations by Integrated Pd(0)-CPG Nanoparticle/Chiral Amine Relay Catalysis

Luca Deiana
a   Department of Organic Chemistry, The Arrhenius Laboratory, Stockholm University, 106 91 Stockholm, Sweden
,
Lorenza Ghisu
a   Department of Organic Chemistry, The Arrhenius Laboratory, Stockholm University, 106 91 Stockholm, Sweden
,
Oscar Córdova
a   Department of Organic Chemistry, The Arrhenius Laboratory, Stockholm University, 106 91 Stockholm, Sweden
,
Samson Afewerki
b   Department of Applied Science and Design, Holmgatan 10, 851 70 Sundsvall, Sweden   Fax: +46(15)4908   Email: armando.cordova@miun.se   Email: acordova@organ.su.se
,
Renyun Zhang
b   Department of Applied Science and Design, Holmgatan 10, 851 70 Sundsvall, Sweden   Fax: +46(15)4908   Email: armando.cordova@miun.se   Email: acordova@organ.su.se
,
Armando Córdova*
a   Department of Organic Chemistry, The Arrhenius Laboratory, Stockholm University, 106 91 Stockholm, Sweden
b   Department of Applied Science and Design, Holmgatan 10, 851 70 Sundsvall, Sweden   Fax: +46(15)4908   Email: armando.cordova@miun.se   Email: acordova@organ.su.se
› Author Affiliations
Further Information

Publication History

Received: 08 January 2014

Accepted: 08 February 2014

Publication Date:
17 March 2014 (online)


Abstract

A series of highly diastereo- and enantioselective aerobic oxidation–Michael–carbocyclization cascade transformations by integrated heterogeneous Pd(0)-CPG nanoparticle/chiral amine relay catalysis are disclosed. The heterogeneous Pd(0)-CPG nanoparticle catalysts were efficient for both the sequential aerobic oxidation and dynamic kinetic asymmetric Michael–carbocyclization transformations, resulting in 1) oxidation of a variety of allylic alcohols to enals and 2) formation of cyclopentenes containing an all-carbon quaternary stereocenter in good to high yields with up to 20:1 dr and 99.5:0.5 er.

Supporting Information