Evidence map›Paper›PMID 23244027›Full record

ArticleThe Journal of organic chemistry2013

Mechanistic analysis and optimization of the copper-catalyzed enantioselective intramolecular alkene aminooxygenation.

Monissa C Paderes, Jerome B Keister, Sherry R Chemler

Abstract read
In one paragraph

Article in The Journal of organic chemistry, 2013. 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
3.0field-weighted citation impact, top 9% 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, 74 citations in OpenAlex.

  1. Article
  2. Article
  3. Review
  4. Copper-catalyzed generation of nitrogen-centered radicals and reactions thereof.ARKIVOC : free online journal of organic chemistry · 2024
    Article
  5. Article
  6. Article
  7. Regiodivergent Electrophotocatalytic Aminooxygenation of Aryl Olefins.Journal of the American Chemical Society · 2022
    Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Copper-catalyzed oxidative amination and allylic amination of alkenes.Chemistry (Weinheim an der Bergstrasse, Germany) · 2013
    Article
  14. Review
  15. Article
  16. Copper-Catalyzed Synthesis ofSynlett : accounts and rapid communications in synthetic organic chemistry
    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 at 1 institution in 1 country.

Monissa C PaderesUniversity at Buffalo, The State University of New York, Buffalo, New York 14260, USA.
Jerome B Keister
Sherry R Chemler
University at Buffalo, State University of New York · US

Funding

New Methods for Nitrogen Heterocycle SynthesisR01GM078383 · NIGMS · STATE UNIVERSITY OF NEW YORK AT BUFFALO · PI CHEMLER, SHERRY R · 2006 to 2023
$5.6M
NIGMS NIH HHS GM-078383NIGMS NIH HHS R01 GM078383
6 · The paper itself

Abstract

The catalytic asymmetric aminooxygenation of alkenes provides an efficient and straightforward approach to prepare chiral vicinal amino alcohols. We have reported a copper(II)-catalyzed enantioselective intramolecular alkene aminooxygenation, using (2,2,6,6-tetramethylpiperidin-1-yl)oxyl (TEMPO) as the oxygen source, which results in the synthesis of chiral indolines and pyrrolidines. Herein we disclose that kinetics studies indicate the reaction is first order both in substrate and the [Cu(R,R)-Ph-bis(oxazoline)]OTf(2) catalyst and zero order in TEMPO. Furthermore, kinetic isotope effect studies support that the cis-aminocupration step, the addition of N-Cu across the alkene, is the rate-limiting step. Subsequent formation of a carbon radical intermediate and direct carbon radical trapping with TEMPO is the indicated mechanism for the C-O bond formation as suggested by a deuterium labeling experiment. A ligand screen revealed that C(4)-phenyl substitution on the bis(oxazoline) is optimal for high asymmetric induction. The size of the substrate's N-sulfonyl group also influences the enantioselectivity of the reaction. The preparative-scale catalytic aminooxygenation reaction (gram scale) was demonstrated, and an unexpected dependence on reaction temperature was uncovered on the larger scale reaction.

Indexed as

AlkenesAminesCatalysisCopperKineticsLigandsOrganometallic CompoundsOxazolesOxygenStereoisomerismTemperatureAlkenesAminesCopperLigandsOrganometallic CompoundsOxazolesOxygen

Identifiers

PMID23244027
PMCPMC3697020
OpenAlexW1992729975

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.