Evidence map›Paper›PMID 37404802›Full record

ReviewBeilstein journal of organic chemistry2023

Clauson-Kaas pyrrole synthesis using diverse catalysts: a transition from conventional to greener approach.

Dileep Kumar Singh, Rajesh Kumar

Open access · diamondAbstract readReview
In one paragraph

Review in Beilstein journal of organic chemistry, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed
3.0field-weighted citation impact, top 8% 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

5 citing papers in PubMed, 20 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

2 authors at 2 institutions in 1 country.

Dileep Kumar SinghDepartment of Chemistry, Bipin Bihari College, Affiliated to Bundelkhand University, Jhansi-284001, Uttar Pradesh, India.ORCID https://orcid.org/0000-0001-9308-9101
Rajesh KumarP.G. Department of Chemistry, R. D. S. College, B. R. A. Bihar University, Muzaffarpur-842002, Bihar, India.ORCID https://orcid.org/0000-0002-6055-8239
Babasaheb Bhimrao Ambedkar Bihar University · INBundelkhand University · IN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Pyrrole is an important aromatic heterocyclic scaffold found in many natural products and predominantly used in pharmaceuticals. Continuous efforts are being made to design and synthesize various pyrrole derivatives using different synthetic procedures. Among them, the Clauson-Kaas reaction is a very old and well-known method for synthesizing a large number of N-substituted pyrroles. In recent years, due to global warming and environmental concern, research laboratories and pharmaceutical industries around the world are searching for more environmentally friendly reaction conditions for synthesizing compounds. As a result, this review describes the use of various eco-friendly greener protocols to synthesize N-substituted pyrroles. This synthesis involves the reaction of various aliphatic/aromatic primary amines, and sulfonyl primary amines with 2,5-dimethoxytetrahydrofuran in the presence of numerous acid catalysts and transition metal catalysts. The goal of this review is to summarize the synthesis of various N-substituted pyrrole derivatives using a modified Clauson-Kaas reaction under diverse conventional and greener reaction conditions.

Indexed as

2,5-dimethoxytetrahydrofurancatalystClauson–Kaas pyrrole synthesisgreen synthesismicrowave-assisted reactionN-substituted pyrrole

Identifiers

PMID37404802
PMCPMC10315892
OpenAlexW4382457126

What OpenQuestion holds

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LicenceCC BY
Read underepoch 390

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.