Evidence map›Paper›PMID 29267229›Full record

ReviewMolecules (Basel, Switzerland)2017

Synthesis of Non-Racemic Pyrazolines and Pyrazolidines by [3+2] Cycloadditions of Azomethine Imines.

Franc Požgan, Hamad Al Mamari, Uroš Grošelj, Jurij Svete, Bogdan Štefane

Abstract readReview
In one paragraph

Review in Molecules (Basel, Switzerland), 2017. 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. Review
  3. Article
  4. Synthesis of 6,7-Dihydro-1Molecules (Basel, Switzerland) · 2021
    Article
  5. Article
  6. Article
  7. Review
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

5 authors.

Franc PožganFaculty of Chemistry and Chemical Technology, University of Ljubljana, Večna pot 113, SI 1000 Ljubljana, Slovenia. Franc.Pozgan@fkkt.uni-lj.si.ORCID 0000-0001-6040-294X
Hamad Al MamariDepartment of Chemistry, College of Science, Sultan Qaboos University, P.O. Box 36, Al Khoud Muscat, Oman. halmamari@squ.edu.om.
Uroš GrošeljFaculty of Chemistry and Chemical Technology, University of Ljubljana, Večna pot 113, SI 1000 Ljubljana, Slovenia. uros.groselj@fkkt.uni-lj.si.
Jurij SveteFaculty of Chemistry and Chemical Technology, University of Ljubljana, Večna pot 113, SI 1000 Ljubljana, Slovenia. jurij.svete@fkkt.uni-lj.si.ORCID 0000-0003-3339-3595
Bogdan ŠtefaneFaculty of Chemistry and Chemical Technology, University of Ljubljana, Večna pot 113, SI 1000 Ljubljana, Slovenia. bogdan.stefane@fkkt.uni-lj.si.ORCID 0000-0002-8709-9853

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Asymmetric [3+2] cycloadditions of azomethine imines comprise a useful synthetic tool for the construction of pyrazole derivatives with a variable degree of saturation and up to three stereogenic centers. As analogues of pyrrolidines and imidazolidines that are abundant among natural products, pyrazoline and pyrazolidine derivatives represent attractive synthetic targets due to their extensive applications in the chemical and medicinal industries. Following the increased understanding of the mechanistic aspect of metal-catalyzed and organocatalyzed [3+2] cycloadditions of 1,3-dipoles gained over recent years, significant strides have been taken to design and develop new protocols that proceed efficiently under mild synthetic conditions and duly benefit from superior functional group tolerance and selectivity. In this review, we represent the current state of the art in this field and detailed methods for the synthesis of non-racemic pyrazolines and pyrazolidines via [3+2] metal and organocatalyzed transformations reported since the seminal work of Kobayashi et al. and Fu et al. in 2002 and 2003 up to the end of year 2017.

Indexed as

Azo CompoundsCatalysisCycloaddition ReactionIminesMetalsMolecular StructurePyrazolesStereoisomerismThiosemicarbazonesAzo CompoundsazomethineIminesMetalsPyrazolesThiosemicarbazones[3+2] cycloadditionsazomethine iminesmetal-catalyzed cycloadditionsorganocatalyzed cycloadditionspyrazolidinespyrazolines

Identifiers

PMID29267229
PMCPMC5943927

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Registered trials

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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.