Evidence map›Paper›PMID 21785516›Full record

ArticleTetrahedron letters2010

Synthesis of function-oriented 2-phenyl-2H-chromene derivatives using L-pipecolinic acid and substituted guanidine organocatalysts.

Bhaskar C Das, Seetaram Mohapatra, Philip D Campbell, Sabita Nayak, Sakkarapalayam M Mahalingam, Todd Evans

Open access · greenAbstract read
In one paragraph

Article in Tetrahedron letters, 2010. 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
2.0field-weighted citation impact, top 14% 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

7 citing papers in PubMed, 47 citations in OpenAlex.

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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

6 authors at 2 institutions in 1 country.

Bhaskar C DasDepartment of Nuclear Medicine, Albert Einstein College of Medicine, Bronx, NY 10461, USA.
Seetaram Mohapatra
Philip D Campbell
Sabita Nayak
Sakkarapalayam M Mahalingam
Todd Evans
Albert Einstein College of Medicine · USCornell University · US

Funding

Regulation of Embryonic Erythropoiesis by BMP SignalingR37HL056182 · NHLBI · WEILL MEDICAL COLL OF CORNELL UNIV · PI EVANS, TODD R · 2009 to 2016
$3.2M
Regulation of Embryonic Erythropoiesis by BMP SignalingR01HL056182 · NHLBI · YESHIVA UNIVERSITY · PI EVANS, TODD R · 1997 to 2008
$3.1M
NHLBI NIH HHS R37 HL056182
6 · The paper itself

Abstract

Organocatalytic domino oxa-Michael/aldol reactions between salicylaldehyde with electron deficient olefins are presented. We screened guanidine, 1,1,3,3-tetramethylguanidine (TMG) and L-pipecolinic acid as organocatalysts for this transformation. 3-Substituted 2-phenyl-2H-chromene derivatives are synthesized with high yields and with poor enantioselectivity (5-17% ee) using L-pipecolinic acid while TMG works well with cinnamaldehyde without using co-catalyst. These 3-substituted-2-phenyl-2H-chromene derivatives are further derivatized to synthesize triazole and biotin-containing chromene derivatives, to facilitate purification of protein targets.

Identifiers

PMID21785516
PMCPMC3140427
OpenAlexW2018208329

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.