Origins of Enhanced Enantioselectivity in the Pd-Catalyzed Decarboxylative Allylic Alkylation of <em>N</em>-Benzoyl Lactams

We explore the origins of the marked improvement in enantioselectivity in the inner-sphere (PHOX)Pd-catalyzed allylic alkylation of <i>N</i>-benzoyl lactam nucleophiles over their carbocyclic counterparts. We employ density functional theory calculations to aid in the interpretation of e...

Full description

Bibliographic Details
Main Authors: Alexander Q. Cusumano, Tianyi Zhang, William A. Goddard, Brian M. Stoltz
Format: Article
Language:English
Published: MDPI AG 2023-08-01
Series:Catalysts
Subjects:
Online Access:https://www.mdpi.com/2073-4344/13/9/1258
_version_ 1797580884332773376
author Alexander Q. Cusumano
Tianyi Zhang
William A. Goddard
Brian M. Stoltz
author_facet Alexander Q. Cusumano
Tianyi Zhang
William A. Goddard
Brian M. Stoltz
author_sort Alexander Q. Cusumano
collection DOAJ
description We explore the origins of the marked improvement in enantioselectivity in the inner-sphere (PHOX)Pd-catalyzed allylic alkylation of <i>N</i>-benzoyl lactam nucleophiles over their carbocyclic counterparts. We employ density functional theory calculations to aid in the interpretation of experimental results. Ultimately, we propose that the enhancement in enantioselectivity arises primarily from noncovalent interactions between the substrate and ligand rather than secondary substrate chelation, as previously hypothesized.
first_indexed 2024-03-10T22:56:22Z
format Article
id doaj.art-82f1e14634ab4afa86871ee073d67f7d
institution Directory Open Access Journal
issn 2073-4344
language English
last_indexed 2024-03-10T22:56:22Z
publishDate 2023-08-01
publisher MDPI AG
record_format Article
series Catalysts
spelling doaj.art-82f1e14634ab4afa86871ee073d67f7d2023-11-19T09:57:56ZengMDPI AGCatalysts2073-43442023-08-01139125810.3390/catal13091258Origins of Enhanced Enantioselectivity in the Pd-Catalyzed Decarboxylative Allylic Alkylation of <em>N</em>-Benzoyl LactamsAlexander Q. Cusumano0Tianyi Zhang1William A. Goddard2Brian M. Stoltz3The Warren and Katharine Schlinger Laboratory for Chemistry and Chemical Engineering, Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, CA 91125, USAThe Warren and Katharine Schlinger Laboratory for Chemistry and Chemical Engineering, Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, CA 91125, USAMaterials and Process Simulation Center, Beckman Institute, California Institute of Technology, Pasadena, CA 91125, USAThe Warren and Katharine Schlinger Laboratory for Chemistry and Chemical Engineering, Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, CA 91125, USAWe explore the origins of the marked improvement in enantioselectivity in the inner-sphere (PHOX)Pd-catalyzed allylic alkylation of <i>N</i>-benzoyl lactam nucleophiles over their carbocyclic counterparts. We employ density functional theory calculations to aid in the interpretation of experimental results. Ultimately, we propose that the enhancement in enantioselectivity arises primarily from noncovalent interactions between the substrate and ligand rather than secondary substrate chelation, as previously hypothesized.https://www.mdpi.com/2073-4344/13/9/1258C(sp<sup>3</sup>)–C(sp<sup>3</sup>) cross-couplingasymmetric catalysiscomputationallylic alkylation
spellingShingle Alexander Q. Cusumano
Tianyi Zhang
William A. Goddard
Brian M. Stoltz
Origins of Enhanced Enantioselectivity in the Pd-Catalyzed Decarboxylative Allylic Alkylation of <em>N</em>-Benzoyl Lactams
Catalysts
C(sp<sup>3</sup>)–C(sp<sup>3</sup>) cross-coupling
asymmetric catalysis
computation
allylic alkylation
title Origins of Enhanced Enantioselectivity in the Pd-Catalyzed Decarboxylative Allylic Alkylation of <em>N</em>-Benzoyl Lactams
title_full Origins of Enhanced Enantioselectivity in the Pd-Catalyzed Decarboxylative Allylic Alkylation of <em>N</em>-Benzoyl Lactams
title_fullStr Origins of Enhanced Enantioselectivity in the Pd-Catalyzed Decarboxylative Allylic Alkylation of <em>N</em>-Benzoyl Lactams
title_full_unstemmed Origins of Enhanced Enantioselectivity in the Pd-Catalyzed Decarboxylative Allylic Alkylation of <em>N</em>-Benzoyl Lactams
title_short Origins of Enhanced Enantioselectivity in the Pd-Catalyzed Decarboxylative Allylic Alkylation of <em>N</em>-Benzoyl Lactams
title_sort origins of enhanced enantioselectivity in the pd catalyzed decarboxylative allylic alkylation of em n em benzoyl lactams
topic C(sp<sup>3</sup>)–C(sp<sup>3</sup>) cross-coupling
asymmetric catalysis
computation
allylic alkylation
url https://www.mdpi.com/2073-4344/13/9/1258
work_keys_str_mv AT alexanderqcusumano originsofenhancedenantioselectivityinthepdcatalyzeddecarboxylativeallylicalkylationofemnembenzoyllactams
AT tianyizhang originsofenhancedenantioselectivityinthepdcatalyzeddecarboxylativeallylicalkylationofemnembenzoyllactams
AT williamagoddard originsofenhancedenantioselectivityinthepdcatalyzeddecarboxylativeallylicalkylationofemnembenzoyllactams
AT brianmstoltz originsofenhancedenantioselectivityinthepdcatalyzeddecarboxylativeallylicalkylationofemnembenzoyllactams