Evidence map›Paper›PMID 33377249›Full record

ArticleAngewandte Chemie (International ed. in English)2021

Oxalohydrazide Ligands for Copper-Catalyzed C-O Coupling Reactions with High Turnover Numbers.

Ritwika Ray, John F Hartwig

Open access · greenAbstract read
In one paragraph

Article in Angewandte Chemie (International ed. in English), 2021. 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
3.9field-weighted citation impact, top 5% of its field
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, 82 citations in OpenAlex.

  1. Article
  2. Article
  3. Synthetic Studies Towards Darobactin A.Chemistry (Weinheim an der Bergstrasse, Germany) · 2026
    Article
  4. Article
  5. Article
  6. Review
  7. Efficient Aminations of Aryl Halides by a Cu(II) Catalyst.Journal of the American Chemical Society · 2025
    Article
  8. Article
  9. Article
  10. Article
  11. Room-Temperature Copper-Catalyzed Etherification of Aryl Bromides.Angewandte Chemie (International ed. in English) · 2024
    Article
  12. Bicyclopentylation of Alcohols with Thianthrenium Reagents.Journal of the American Chemical Society · 2023
    Article
  13. Article
  14. Article
  15. Chemoselective, Scalable Nickel-Electrocatalytic O-Arylation of Alcohols.Angewandte Chemie (International ed. in English) · 2021
    Article
  16. 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

2 authors at 1 institution in 1 country.

Ritwika RayDepartment of Chemistry, University of California, Berkeley, CA, 94720, USA.ORCID 0000-0001-5999-5864
John F HartwigDepartment of Chemistry, University of California, Berkeley, CA, 94720, USA.ORCID 0000-0002-4157-468X
University of California, Berkeley · US

Funding

Discovery and Development of Organic Reactions Catalyzed by Transition Metals Valuable for Medicinal ChemistryR35GM130387 · NIGMS · UNIVERSITY OF CALIFORNIA BERKELEY · PI John F Hartwig · 2019 to 2026
$7.1M
Acquisition of a Cryoprobe and Related Accessories for a 600 MHz NMR Spectrometer to Support Health Research Activities at the University of California, BerkeleyS10OD024998 · OD · UNIVERSITY OF CALIFORNIA BERKELEY · PI HARTWIG, JOHN F · 2018 to 2018
$265k
NIGMS NIH HHS R35 GM130387NIGMS NIH HHS R35GM130387NIH HHS S10 OD024998NIH HHS S10OD024998
6 · The paper itself

Abstract

Here, we report a class of ligands based on oxalohydrazide cores and N-amino pyrrole and N-amino indole units that generates long-lived copper catalysts for couplings that form the C-O bonds in biaryl ethers. These Cu-catalyzed coupling of phenols with aryl bromides occurred with turnovers up to 8000, a value which is nearly two orders of magnitude higher than those of prior couplings to form biaryl ethers and nearly an order of magnitude higher than those of any prior copper-catalyzed coupling of aryl bromides and chlorides. This ligand also led to copper systems that catalyze the coupling of aryl chlorides with phenols and the coupling of aryl bromides and iodides with primary benzylic and aliphatic alcohols. A wide variety of functional groups including nitriles, halides, ethers, ketones, amines, esters, amides, vinylarenes, alcohols and boronic acid esters were tolerated, and reactions occurred with aryl bromides in pharmaceutically related structures.

Indexed as

CatalysisCopperEthersHydrazinesLigandsMolecular StructureCopperEthersHydrazinesLigandscopper catalysiscross-couplinghigh turnover numbersoxalohydrazide ligands

Identifiers

PMID33377249
PMCPMC8629487
OpenAlexW3115374403

What OpenQuestion holds

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Read underepoch 390

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.