Evidence map›Paper›PMID 26308097›Full record

ArticleJournal of the American Chemical Society2015

Catalytic Kinetic Resolution of Disubstituted Piperidines by Enantioselective Acylation: Synthetic Utility and Mechanistic Insights.

Benedikt Wanner, Imants Kreituss, Osvaldo Gutierrez, Marisa C Kozlowski, Jeffrey W Bode

Abstract read
In one paragraph

Article in Journal of the American Chemical Society, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

6 citing papers in PubMed.

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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

5 authors.

Benedikt WannerLaboratorium für Organische Chemie, Department of Chemistry and Applied Biosciences, ETH-Zürich , 8093 Zürich, Switzerland.
Imants KreitussLaboratorium für Organische Chemie, Department of Chemistry and Applied Biosciences, ETH-Zürich , 8093 Zürich, Switzerland.
Osvaldo GutierrezDepartment of Chemistry, Roy and Diana Vagelos Laboratories, University of Pennsylvania , Philadelphia, Pennsylvania 19104, United States.
Marisa C KozlowskiDepartment of Chemistry, Roy and Diana Vagelos Laboratories, University of Pennsylvania , Philadelphia, Pennsylvania 19104, United States.
Jeffrey W BodeLaboratorium für Organische Chemie, Department of Chemistry and Applied Biosciences, ETH-Zürich , 8093 Zürich, Switzerland.

Funding

Catalytic Oxidative Fragment Coupling ReactionsR01GM112684 · NIGMS · UNIVERSITY OF PENNSYLVANIA · PI KOZLOWSKI, MARISA C · 2015 to 2018
$1.2M
NIGMS NIH HHS GM-112684NIGMS NIH HHS R01 GM112684
6 · The paper itself

Abstract

The catalytic kinetic resolution of cyclic amines with achiral N-heterocyclic carbenes and chiral hydroxamic acids has emerged as a promising method to obtain enantio-enriched amines with high selectivity factors. In this report, we describe the catalytic kinetic resolution of disubstituted piperdines with practical selectivity factors (s, up to 52) in which we uncovered an unexpected and pronounced conformational effect resulting in disparate reactivity and selectivity between the cis- and trans-substituted piperidine isomers. Detailed experimental and computational studies of the kinetic resolution of various disubstituted piperidines revealed a strong preference for the acylation of conformers in which the α-substituent occupies the axial position. This work provides further experimental and computational support for the concerted 7-member transition state model for acyl transfer reagents and expands the scope and functional group tolerance of the secondary amine kinetic resolution.

Indexed as

AcylationAminesCatalysisHeterocyclic CompoundsHydroxamic AcidsKineticsMethaneModels, MolecularMolecular ConformationStereoisomerismAminescarbeneHeterocyclic CompoundsHydroxamic AcidsMethane

Identifiers

PMID26308097
PMCPMC4601563

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.