Published May 24, 2023 | Version Published
Journal Article Open

Divergent Catalysis: Catalytic Asymmetric [4+2] Cycloaddition of Palladium Enolates

Abstract

An asymmetric decarboxylative [4+2] cycloaddition from a catalytically generated chiral Pd enolate was developed, forging four contiguous stereocenters in a single transformation. This was achieved through a strategy termed divergent catalysis, wherein departure from a known catalytic cycle enables novel reactivity of a targeted intermediate prior to re-entry into the original cycle. Mechanistic studies including quantum mechanics calculations, Eyring analysis, and KIE studies offer insight into the reaction mechanism.

Additional Information

© 2023 American Chemical Society. This publication is licensed under CC-BY 4.0. The NIH-NIGMS (R35GM145239), Heritage Medical Research Investigators Program, and Caltech are thanked for the support of our research program. The authors thank the Caltech High Performance Computing Center for support. The authors thank Dr. David VanderVelde (Caltech) for NMR expertise, Dr. Mona Shagholi (Caltech) for mass spectrometry assistance, and Dr. Scott Virgil (Caltech) for instrumentation and SFC assistance. P.C. and C.S.S. would like to thank the NSF GRFP for funding. W.A.G. thanks the NSF (CBET-2005250) for support. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the author(s) and do not necessarily reflect the views of the National Science Foundation. This manuscript is dedicated to the memory of Jiro Tsuji (1927–2022). Author Contributions. K.N.F. and A.Q.C. contributed equally. The authors declare no competing financial interest.

Files

ja3c02104.pdf

Files (39.8 MB)

Name Size Download all
md5:316244d06823ce112790bf55c766dc43
3.7 MB Preview Download
md5:9beb6a6ade17f25059101515623fb9e7
35.9 MB Preview Download
md5:e5417f505a8a2a3c8a8cecda1021e314
139.0 kB Preview Download
md5:a04d2d913820f26a954a53f5e73fad14
21.3 kB Download

Additional details

Identifiers

Eprint ID
121759
Resolver ID
CaltechAUTHORS:20230607-310749000.5
DOI
10.1021/jacs.3c02104
PMCID
PMC10388310

Funding

NIH
R35GM145239
Heritage Medical Research Institute
NSF
CBET-2005250
NSF Graduate Research Fellowship

Dates

Created
2023-06-08
Created from EPrint's datestamp field
Updated
2023-06-08
Created from EPrint's last_modified field

Caltech Custom Metadata

Caltech groups
Heritage Medical Research Institute, Resnick Sustainability Institute, Division of Chemistry and Chemical Engineering (CCE)
Other Numbering System Name
WAG
Other Numbering System Identifier
1569