Evidence map›Paper›PMID 28133660›Full record

ArticleChemical communications (Cambridge, England)2017

6-exo-trig Michael addition-lactonizations for catalytic enantioselective chromenone synthesis.

Rifahath M Neyyappadath, David B Cordes, Alexandra M Z Slawin, Andrew D Smith

Abstract read
In one paragraph

Article in Chemical communications (Cambridge, England), 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.

0numbers the graph read from it
0cells of the map it votes in
7citing 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

7 citing papers in PubMed.

  1. Article
  2. Review
  3. Article
  4. Article
  5. Generation and Reactivity of C(1)-Ammonium Enolates by Using Isothiourea Catalysis.Chemistry (Weinheim an der Bergstrasse, Germany) · 2021
    Review
  6. Article
  7. Article
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

4 authors.

Rifahath M NeyyappadathEaStCHEM, School of Chemistry, University of St Andrews, North Haugh, St Andrews, KY16 9ST, UK. ads10@st-andrews.ac.uk.
David B CordesEaStCHEM, School of Chemistry, University of St Andrews, North Haugh, St Andrews, KY16 9ST, UK. ads10@st-andrews.ac.uk.ORCID http://orcid.org/0000-0002-5366-9168
Alexandra M Z SlawinEaStCHEM, School of Chemistry, University of St Andrews, North Haugh, St Andrews, KY16 9ST, UK. ads10@st-andrews.ac.uk.
Andrew D SmithEaStCHEM, School of Chemistry, University of St Andrews, North Haugh, St Andrews, KY16 9ST, UK. ads10@st-andrews.ac.uk.ORCID http://orcid.org/0000-0002-2104-7313

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The catalytic enantioselective 6-exo-trig Michael addition-lactonization of enone-acid substrates to form cis-chromenones with high diastereo- and enantiocontrol was developed using the commercially available isothiourea tetramisole. An acidic workup proved necessary to minimize product epimerization and maximize product er, providing cis-chromenones in excellent yield, and with excellent diastereo- and enantioselectivity.

Identifiers

PMID28133660
PMCPMC5358503

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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.