Evidence map›Paper›PMID 23631448›Full record

ArticleOrganic letters2013

Catalytic, asymmetric indolizidinone aza-quaternary stereocenter synthesis: expedient synthesis of the cylindricine alkaloid core.

Derek M Dalton, Tomislav Rovis

Erratum issuedAbstract read
In one paragraph

Article in Organic letters, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing 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

5 citing papers in PubMed.

  1. Review
  2. Article
  3. Article
  4. Article
  5. Article
4 · The record

Corrections and comments

  • Erratum issued
5 · Who and what money

Authors and funding

2 authors.

Derek M DaltonDepartment of Chemistry, Colorado State University , Ft. Collins, Colorado 80523, United States.
Tomislav Rovis

Funding

Asymmetric Synthesis of Nitrogen HeterocyclesR01GM080442 · NIGMS · COLUMBIA UNIV NEW YORK MORNINGSIDE · PI ROVIS, TOMISLAV · 2007 to 2024
$5.5M
NIGMS NIH HHS GM80442NIGMS NIH HHS R01 GM080442
6 · The paper itself

Abstract

The Rh(I)•CKphos catalyzed [2 + 2 + 2] cycloaddition of 1,1-disubstituted alkenyl isocyanates and alkyl alkynes selectively forms previously inaccessible vinylogous amide indolizidinone cycloadducts, establishing an aza-quaternery stereocenter with excellent enantioselectivities (up to 98% ee). This advance enables a seven step catalytic, asymmetric synthesis of the tricyclic core of the cylindricine alkaloids with excellent control of product selectivity as well as regio- and enantioselectivity.

Indexed as

AlkaloidsCatalysisCycloaddition ReactionHeterocyclic Compounds, 3-RingIndolizinesMolecular StructureQuinolonesRhodiumStereoisomerismAlkaloidscylindricine CHeterocyclic Compounds, 3-RingIndolizinesQuinolonesRhodium

Identifiers

PMID23631448
PMCPMC3809156

What OpenQuestion holds

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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.