Evidence map›Paper›PMID 38318687›Full record

ArticleAdvanced science (Weinheim, Baden-Wurttemberg, Germany)2024

Catalytic Asymmetric Difluoroalkylation Using In Situ Generated Difluoroenol Species as the Privileged Synthon.

Xiongda Xie, Shanliang Dong, Kemiao Hong, Jingjing Huang, Xinfang Xu

Open access · goldAbstract read
In one paragraph

Article in Advanced science (Weinheim, Baden-Wurttemberg, Germany), 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed
3.3field-weighted citation impact, top 7% 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

4 citing papers in PubMed, 16 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

5 authors at 1 institution in 1 country.

Xiongda XieSchool of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, P. R. China.
Shanliang DongSchool of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, P. R. China.
Kemiao HongSchool of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, P. R. China.
Jingjing HuangSchool of Chemistry, Sun Yat-Sen University, Guangzhou, Guangdong, 510275, P. R. China.
Xinfang XuSchool of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, P. R. China.ORCID https://orcid.org/0000-0002-8706-5151
Sun Yat-sen University · CN

Funding

Guangdong Provincial Key R&D Programme 21202107201900002National Natural Science Foundation of China 22371309The Key Laboratory Open Project of Xinjiang Native Medicinal and Edible Plant Resources Chemistry KSUZDSYS202103
6 · The paper itself

Abstract

A robust and practical difluoroalkylation synthon, α,α-difluoroenol species, which generated in situ from trifluoromethyl diazo compounds and water in the presence of dirhodium complex, is disclosed. As compared to the presynthesized difluoroenoxysilane and in situ formed difluoroenolate under basic conditions, this difluoroenol intermediate displayed versatile reactivity, resulting in dramatically improved enantioselectivity under mild conditions. As demonstrated in catalytic asymmetric aldol reaction and Mannich reactions with ketones or imines in the presence of chiral organocatalysts, quinine-derived urea, and chiral phosphoric acid (CPA), respectively, this relay catalysis strategy provides an effective platform for applying asymmetric fluorination chemistry. Moreover, this method features a novel 1,2-difunctionalization process via installation of a carbonyl motif and an alkyl group on two vicinal carbons, which is a complementary protocol to the metal carbene gem-difunctionalization reaction.

Indexed as

1,2‐difunctionalizationasymmetric catalysisdifluoroalkylationmetal carbenemulti‐component reaction

Identifiers

PMID38318687
PMCPMC11005710
OpenAlexW4391592325

What OpenQuestion holds

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LicenceCC BY
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.