Evidence map›Paper›PMID 22174973›Full record

ArticleChemical science2011

Catalytic Asymmetric [4 + 2] Additions with Aliphatic Nitroalkenes.

Keith J Bartelson, Ravi P Singh, Bruce M Foxman, Li Deng

Abstract read
In one paragraph

Article in Chemical science, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.

0numbers the graph read from it
0cells of the map it votes in
7citing 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

7 citing papers in PubMed.

  1. Article
  2. How Bases Catalyze Diels-Alder Reactions.Chemistry (Weinheim an der Bergstrasse, Germany) · 2023
    Article
  3. Article
  4. Article
  5. Article
  6. Control of chemoselectivity in asymmetric tandem reactions: Direct synthesis of chiral amines bearing nonadjacent stereocenters.Proceedings of the National Academy of Sciences of the United States of America · 2018
    Article
  7. 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

4 authors.

Keith J BartelsonDepartment of Chemistry, Brandeis University, Waltham, MA, 02454-9110, USA.
Ravi P Singh
Bruce M Foxman
Li Deng

Funding

Chiral lewis Base-Catalyzed Asymmetric ReactionsR01GM061591 · NIGMS · BRANDEIS UNIVERSITY · PI DENG, LI · 2001 to 2018
$5.4M
NIGMS NIH HHS R01 GM061591
6 · The paper itself

Abstract

We describe an unprecedented cycloaddition reaction of 2-pyrones with aliphatic nitroalkenes catalyzed by a new bifunctional cinchona alkaloid-derived catalyst bearing a bulky TIPS-ether at the 9-position. The [2.2.2] bicyclic adducts were obtained in good yield with excellent diastereo- and enantioselectivity. Carbon isotope effects were measured by (13)C NMR and are indicative of a stepwise mechanism. Finally, a synthetic application is demonstrated, highlighting the utility of the cycloadducts.

Identifiers

PMID22174973
PMCPMC3235653

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.