Evidence map›Paper›PMID 22721256›Full record

ArticleOrganic letters2012

Phosphine/palladium-catalyzed syntheses of alkylidene phthalans, 3-deoxyisoochracinic acid, isoochracinic acid, and isoochracinol.

Yi Chiao Fan, Ohyun Kwon

Abstract read
In one paragraph

Article in Organic letters, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing 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

6 citing papers in PubMed.

  1. Review
  2. Article
  3. Phosphine Organocatalysis.Chemical reviews · 2018
    Review
  4. Article
  5. Chemical science · 2014
    Article
  6. 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.

Yi Chiao FanDepartment of Chemistry and Biochemistry, University of California, Los Angeles, California 90095-1569, USA.
Ohyun Kwon

Funding

Phosphine-Catalyzed Annulations and Their ApplicationsR01GM071779 · NIGMS · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI OHYUN KWON · 2006 to 2026
$5.7M
Pilot-Scale Library Production Based on Phosphine Catalysis of AllenesP41GM081282 · NIGMS · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI KWON, OHYUN · 2007 to 2009
$1.4M
NIGMS NIH HHS P41 GM081282NIGMS NIH HHS P41GM081282NIGMS NIH HHS R01 GM071779NIGMS NIH HHS R01GM071779
6 · The paper itself

Abstract

In this study we used sequential catalysis-PPh(3)--catalyzed nucleophilic addition followed by Pd(0)-catalyzed Heck cyclization--to construct complex functionalized alkylidene phthalans rapidly, in high yields, and with good stereoselectivities (E/Z ratios of up to 1:22). The scope of this Michael-Heck reaction includes substrates bearing various substituents around the alkylidene phthalan backbone. Applying this efficient sequential catalysis, we accomplished concise total syntheses of 3-deoxyisoochacinic acid, isoochracinic acid, and isoochracinol.

Indexed as

BenzofuransCatalysisMolecular StructurePalladiumPhosphinesPhthalic AcidsStereoisomerism3-deoxyisoochracinic acidBenzofuransisoochracinic acidisoochracinolPalladiumphosphinePhosphinesPhthalic Acids

Identifiers

PMID22721256
PMCPMC3391320

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.