Evidence map›Paper›PMID 36264837›Full record

ArticleJournal of the American Chemical Society2022

Asymmetric Photochemical [2 + 2]-Cycloaddition of Acyclic Vinylpyridines through Ternary Complex Formation and an Uncontrolled Sensitization Mechanism.

Zebediah C Girvin, Laura F Cotter, Hyung Yoon, Steven J Chapman, James M Mayer, Tehshik P Yoon, Scott J Miller

Abstract read
In one paragraph

Article in Journal of the American Chemical Society, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.

0numbers the graph read from it
0cells of the map it votes in
8citing 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

8 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

7 authors.

Zebediah C GirvinDepartment of Chemistry, Yale University, 225 Prospect Street, New Haven, Connecticut06511, United States.
Laura F CotterDepartment of Chemistry, Yale University, 225 Prospect Street, New Haven, Connecticut06511, United States.
Hyung YoonDepartment of Chemistry, Yale University, 225 Prospect Street, New Haven, Connecticut06511, United States.ORCID 0000-0003-4573-2160
Steven J ChapmanDepartment of Chemistry, University of Wisconsin─Madison, 1101 University Avenue, Madison, Wisconsin53706, United States.ORCID 0000-0003-1570-4580
James M MayerDepartment of Chemistry, Yale University, 225 Prospect Street, New Haven, Connecticut06511, United States.ORCID 0000-0002-3943-5250
Tehshik P YoonDepartment of Chemistry, University of Wisconsin─Madison, 1101 University Avenue, Madison, Wisconsin53706, United States.ORCID 0000-0002-3934-4973
Scott J MillerDepartment of Chemistry, Yale University, 225 Prospect Street, New Haven, Connecticut06511, United States.ORCID 0000-0001-7817-1318

Funding

Site-Selective Catalysis for Bioactive Scaffold DiversificationR35GM132092 · NIGMS · YALE UNIVERSITY · PI Scott J Miller · 2019 to 2026
$6.3M
UNDERSTANDING METAL MEDIATED C-H AND O-H BOND OXIDATIONSR01GM050422 · NIGMS · YALE UNIVERSITY · PI MAYER, JAMES M · 1995 to 2020
$6.1M
SYNTHETIC PHOTOCHEMISTRYR35GM144129 · NIGMS · UNIVERSITY OF WISCONSIN-MADISON · PI TEHSHIK P YOON · 2022 to 2026
$3.1M
Coupled Transfers of Electrons and ProtonsR35GM144105 · NIGMS · YALE UNIVERSITY · PI JAMES M MAYER · 2022 to 2026
$2.2M
Understanding coupled transfers of electrons and protons relevant to biological cR56GM050422 · NIGMS · UNIVERSITY OF WASHINGTON · PI MAYER, JAMES M · 2007 to 2007
$310k
NIGMS NIH HHS R01 GM050422NIGMS NIH HHS R35 GM132092NIGMS NIH HHS R35 GM144105NIGMS NIH HHS R35 GM144129NIGMS NIH HHS R56 GM050422
6 · The paper itself

Abstract

Stereochemical control of photochemical reactions that occur via triplet energy transfer remains a challenge. Suppressing off-catalyst stereorandom reactivity is difficult for highly reactive open-shell intermediates. Strategies for suppressing racemate-producing, off-catalyst pathways have long focused on formation of ground state, substrate-catalyst chiral complexes that are primed for triplet energy transfer via a photocatalyst in contrast to their off-catalyst counterparts. Herein, we describe a strategy where both a chiral catalyst-associated vinylpyridine and a nonassociated, free vinylpyridine substrate can be sensitized by an Ir(III) photocatalyst, yet high levels of diastereo- and enantioselectivity in a [2 + 2] photocycloaddition are achieved through a preferred, highly organized transition state. This mechanistic paradigm is distinct from, yet complementary to current approaches for achieving high levels of stereocontrol in photochemical transformations.

Indexed as

AlkenesCatalysisCycloaddition ReactionEnergy TransferStereoisomerismAlkenes

Identifiers

PMID36264837
PMCPMC9633457

What OpenQuestion holds

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Read underepoch 390

Registered trials

None linked

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.