Evidence map›Paper›PMID 26248980›Full record

ArticleChemistry (Weinheim an der Bergstrasse, Germany)2015

Chirality Transfer in Gold(I)-Catalysed Direct Allylic Etherifications of Unactivated Alcohols: Experimental and Computational Study.

Graeme Barker, David G Johnson, Paul C Young, Stuart A Macgregor, Ai-Lan Lee

Abstract read
In one paragraph

Article in Chemistry (Weinheim an der Bergstrasse, Germany), 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing 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

3 citing papers in PubMed.

  1. Review
  2. Article
  3. 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

5 authors.

Graeme BarkerInstitute of Chemical Sciences, Heriot-Watt University, Edinburgh EH14 4AS (UK).
David G JohnsonInstitute of Chemical Sciences, Heriot-Watt University, Edinburgh EH14 4AS (UK).
Paul C YoungInstitute of Chemical Sciences, Heriot-Watt University, Edinburgh EH14 4AS (UK).
Stuart A MacgregorInstitute of Chemical Sciences, Heriot-Watt University, Edinburgh EH14 4AS (UK). S.A.Macgregor@hw.ac.uk.
Ai-Lan LeeInstitute of Chemical Sciences, Heriot-Watt University, Edinburgh EH14 4AS (UK). A.Lee@hw.ac.uk.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Gold(I)-catalysed direct allylic etherifications have been successfully carried out with chirality transfer to yield enantioenriched, γ-substituted secondary allylic ethers. Our investigations include a full substrate-scope screen to ascertain substituent effects on the regioselectivity, stereoselectivity and efficiency of chirality transfer, as well as control experiments to elucidate the mechanistic subtleties of the chirality-transfer process. Crucially, addition of molecular sieves was found to be necessary to ensure efficient and general chirality transfer. Computational studies suggest that the efficiency of chirality transfer is linked to the aggregation of the alcohol nucleophile around the reactive π-bound Au-allylic ether complex. With a single alcohol nucleophile, a high degree of chirality transfer is predicted. However, if three alcohols are present, alternative proton transfer chain mechanisms that erode the efficiency of chirality transfer become competitive.

Indexed as

alcoholsallylationsasymmetric reactionschirality transfergold

Identifiers

PMID26248980
PMCPMC4586480

What OpenQuestion holds

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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.