Evidence map›Paper›PMID 31391898›Full record

ArticleChemical science2019

Conversion of two stereocenters to one or two chiral axes: atroposelective synthesis of 2,3-diarylbenzoindoles.

Yu-Long Hu, Zhe Wang, Hui Yang, Jie Chen, Zi-Bo Wu, Yibo Lei, Ling Zhou

Abstract read
In one paragraph

Article in Chemical science, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing 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

16 citing papers in PubMed.

  1. Chemical science · 2026
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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.

Yu-Long HuKey Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education , Department of Chemistry & Materials Science , National Demonstration Center for Experimental Chemistry Education , Northwest University , Xi'an 710127 , P. R. China . Email: zhoul@nwu.edu.cn.
Zhe WangKey Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education , Department of Chemistry & Materials Science , National Demonstration Center for Experimental Chemistry Education , Northwest University , Xi'an 710127 , P. R. China . Email: zhoul@nwu.edu.cn.
Hui YangKey Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education , Department of Chemistry & Materials Science , National Demonstration Center for Experimental Chemistry Education , Northwest University , Xi'an 710127 , P. R. China . Email: zhoul@nwu.edu.cn.
Jie ChenKey Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education , Department of Chemistry & Materials Science , National Demonstration Center for Experimental Chemistry Education , Northwest University , Xi'an 710127 , P. R. China . Email: zhoul@nwu.edu.cn.ORCID 0000-0001-6745-5534
Zi-Bo WuKey Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education , Department of Chemistry & Materials Science , National Demonstration Center for Experimental Chemistry Education , Northwest University , Xi'an 710127 , P. R. China . Email: zhoul@nwu.edu.cn.
Yibo LeiKey Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education , Department of Chemistry & Materials Science , National Demonstration Center for Experimental Chemistry Education , Northwest University , Xi'an 710127 , P. R. China . Email: zhoul@nwu.edu.cn.
Ling ZhouKey Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education , Department of Chemistry & Materials Science , National Demonstration Center for Experimental Chemistry Education , Northwest University , Xi'an 710127 , P. R. China . Email: zhoul@nwu.edu.cn.ORCID 0000-0002-6805-2961

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Central-to-axial chirality conversion provides efficient access to axially chiral compounds, and several examples regarding the conversion of one, two or four stereocenters to one axis have been reported. Herein, we report the conversion of two stereocenters to one or two chiral axes for the first time. In this study, a new class of enantiomerically enriched 2,3-diarylbenzoindoles was efficiently synthesized using a chiral phosphoric acid-catalyzed [3 + 2] formal cycloaddition and a mild DDQ oxidation strategy. Moreover, a speculative model of the central-to-axial chirality conversion outcome was proposed based on preliminary mechanistic studies and DFT calculations. Potentially, using this strategy, useful chiral phosphine ligand can be synthesized smoothly (99% ee).

Identifiers

PMID31391898
PMCPMC6657404

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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.