Evidence map›Paper›PMID 25697780›Full record

ArticleJournal of the American Chemical Society2015

Ligand-enabled β-C-H arylation of α-amino acids using a simple and practical auxiliary.

Gang Chen, Toshihiko Shigenari, Pankaj Jain, Zhipeng Zhang, Zhong Jin, Jian He, Suhua Li, Claudio Mapelli, Michael M Miller, Michael A Poss and 3 more

Abstract read
In one paragraph

Article in Journal of the American Chemical Society, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 41 papers.

0numbers the graph read from it
0cells of the map it votes in
41citing papers in PubMed
15.5field-weighted citation impact, top 1% 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

41 citing papers in PubMed, 166 citations in OpenAlex.

  1. Pd(II)-Catalyzed Strategies for the β-Arylation of α-Amino Acids: An Overview.Chemistry (Weinheim an der Bergstrasse, Germany) · 2026
    Review
  2. Article
  3. Review
  4. Article
  5. Article
  6. Article
  7. Article
  8. β- and γ-C(spAngewandte Chemie (International ed. in English) · 2023
    Article
  9. Article
  10. Review
  11. Article
  12. Article
  13. Article
  14. Review
  15. Article
  16. Tryptophan Analogues with Fixed Side-Chain Orientation: Expanding the Scope.Chembiochem : a European journal of chemical biology · 2021
    Article
  17. Late-stage C(spChemical science · 2020
    Article
  18. Article
  19. Total Synthesis and Stereochemical Assignment of Streptide.Journal of the American Chemical Society · 2019
    Article
  20. 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

13 authors at 2 institutions in 1 country.

Gang ChenDepartment of Chemistry, The Scripps Research Institute , 10550 N. Torrey Pines Road, La Jolla, California 92037, United States.
Toshihiko Shigenari
Pankaj Jain
Zhipeng Zhang
Zhong Jin
Jian He
Suhua Li
Claudio Mapelli
Michael M Miller
Michael A Poss
Paul M Scola
Kap-Sun Yeung
Jin-Quan Yu
Scripps Research Institute · USBristol-Myers Squibb (United States) · US

Funding

Ligand-promoted Enantioselective C-H Activation ReactionsR01GM084019 · NIGMS · SCRIPPS RESEARCH INSTITUTE, THE · PI YU, JIN-QUAN · 2008 to 2024
$9.5M
NIGMS NIH HHS 2R01GM084019NIGMS NIH HHS R01 GM084019
6 · The paper itself

Abstract

Pd-catalyzed β-C-H functionalizations of carboxylic acid derivatives using an auxiliary as a directing group have been extensively explored in the past decade. In comparison to the most widely used auxiliaries in asymmetric synthesis, the simplicity and practicality of the auxiliaries developed for C-H activation remains to be improved. We previously developed a simple N-methoxyamide auxiliary to direct β-C-H activation, albeit this system was not compatible with carboxylic acids containing α-hydrogen atoms. Herein we report the development of a pyridine-type ligand that overcomes this limitation of the N-methoxyamide auxiliary, leading to a significant improvement of β-arylation of carboxylic acid derivatives, especially α-amino acids. The arylation using this practical auxiliary is applied to the gram-scale syntheses of unnatural amino acids, bioactive molecules, and chiral bis(oxazoline) ligands.

Indexed as

AlanineAmino AcidsCarboxylic AcidsCatalysisChemistry Techniques, SyntheticHydrogenLigandsPalladiumPhenylalaninePyridinesAlanineAmino AcidsCarboxylic AcidsHydrogenLigandsPalladiumPhenylalaninepyridinePyridines

Identifiers

PMID25697780
PMCPMC4432912
OpenAlexW2323250450

What OpenQuestion holds

Textmetadata
LicenceTDM
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.