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   Articles with "auto tandem" as a keyword



Palladium‐Catalyzed Synthesis of 1‐Alkyl‐5‐Arylpyrazoles: The Auto‐Tandem Catalysis for C–C Bond Cleavage/Heck Arylation

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recommendations! Published in 2024 at "Asian Journal of Organic Chemistry"

DOI: 10.1002/ajoc.202400220

Abstract: The regioselective synthesis of 1‐alkyl‐5‐arylpyrazoles, which are potential drug candidates, has been difficult to achieve thus far. In this study, we developed an auto‐tandem Pd‐catalyzed C–C bond cleavage/Heck arylation of N‐cyclopropylhydrazones followed by cycloisomerization to… read more here.

Keywords: auto tandem; synthesis; alkyl arylpyrazoles; bond ... See more keywords

Pd-Catalyzed Rearrangement of N-Alloc-N-allyl Ynamides via Auto-Tandem Catalysis: Evidence for Reversible C-N Activation and Pd(0)-Accelerated Ketenimine Aza-Claisen Rearrangement.

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recommendations! Published in 2021 at "Organic letters"

DOI: 10.1021/acs.orglett.0c04078

Abstract: An auto-tandem catalytic double allylic rearrangement of N-alloc-N-allyl ynamides was developed. This reaction proceeds through two separate and distinct catalytic cycles with both decarboxylative Pd-π-allyl and Pd(0)-promoted aza-Claisen rearrangements occurring. A detailed mechanistic study supported… read more here.

Keywords: auto tandem; aza claisen; alloc allyl; rearrangement ... See more keywords

Cascade Multicomponent Assemblies Involving 1,3-Enynes via Auto-Tandem Palladium Catalysis.

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recommendations! Published in 2022 at "Organic letters"

DOI: 10.1021/acs.orglett.2c02544

Abstract: Here we report a three-component auto-tandem reaction of 1,3-enyne-tethered carbonyls, organoboronic reagents, and suitable nucleophiles catalyzed by palladium, proceeding through consecutive intramolecular vinylogous addition, Suzuki coupling, and allylic alkylation. This process exhibited high chemo- and… read more here.

Keywords: multicomponent assemblies; auto; palladium; auto tandem ... See more keywords

Auto-Tandem Catalytic Reductive Hydroformylation in a CO2-Switchable Solvent System

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recommendations! Published in 2022 at "ACS Sustainable Chemistry & Engineering"

DOI: 10.1021/acssuschemeng.2c00419

Abstract: Upgradation of olefin-enriched Fischer–Tropsch cuts by the synthesis of alcohols leads to drop-in-capable biosynthetic fuels with low carbon emissions. As an alternative to the conventional two-step production of long-chain alcohols, tandem catalytic systems improve the… read more here.

Keywords: system; tandem catalytic; switchable solvent; auto tandem ... See more keywords

Auto-Tandem Copper-Catalyzed Carboxylation of Undirected Alkenyl C-H Bonds with CO2 by Harnessing β-Hydride Elimination.

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recommendations! Published in 2022 at "Journal of the American Chemical Society"

DOI: 10.1021/jacs.2c10754

Abstract: The exploration into challenging scenarios of the application of elementary reactions offers excellent opportunities for the development of unique transformations under organometallic catalysis. As a ubiquitous reaction of metal alkyl complexes, β-hydride elimination plays a… read more here.

Keywords: copper; carboxylation; hydride elimination; auto tandem ... See more keywords