Evidence map›Paper›PMID 31895488›Full record

ArticleAngewandte Chemie (International ed. in English)2020

Cooperative Catalysis for the Highly Diastereo- and Enantioselective [4+3]-Cycloannulation of ortho-Quinone Methides and Carbonyl Ylides.

Arun Suneja, Henning Jakob Loui, Christoph Schneider

Abstract read
In one paragraph

Article in Angewandte Chemie (International ed. in English), 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing 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

11 citing papers in PubMed.

  1. Recent Breakthroughs in Cyclizations ofMolecules (Basel, Switzerland) · 2026
    Review
  2. Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Brønsted Acid-Catalysed Dehydrative Substitution Reactions of Alcohols.Chemistry (Weinheim an der Bergstrasse, Germany) · 2021
    Review
  10. Article
  11. 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

3 authors.

Arun SunejaInstitut für Organische Chemie, Universität Leipzig, Johannisallee 29, 04103, Leipzig, Germany.
Henning Jakob LouiInstitut für Organische Chemie, Universität Leipzig, Johannisallee 29, 04103, Leipzig, Germany.
Christoph SchneiderInstitut für Organische Chemie, Universität Leipzig, Johannisallee 29, 04103, Leipzig, Germany.ORCID 0000-0001-7392-9556

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

We describe herein a highly diastereo- and enantioselective [4+3]-cycloannulation of ortho-quinone methides and carbonyl ylides to furnish functionalized oxa-bridged dibenzooxacines with excellent yields and stereoselectivity in a single synthetic step. The combination of rhodium and chiral phosphoric acid catalysis working in concert to generate both transient intermediates in situ provides direct access to complex bicyclic products with two quaternary and one tertiary stereogenic centers. The products may be further functionalized into valuable and enantiomerically highly enriched building blocks.

Indexed as

asymmetric synthesiscarbonyl ylidescooperative catalysiscycloannulationortho-quinone methides

Identifiers

PMID31895488
PMCPMC7155103

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.