Preparation of nanocellulose and its applications in wound dressing: A review

International Journal of Biological Macromolecules, Journal Year: 2023, Volume and Issue: 254, P. 127997 - 127997

Published: Nov. 8, 2023

Language: Английский

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Research progress on piperidine-containing compounds as agrochemicals

Chinese Chemical Letters, Journal Year: 2024, Volume and Issue: unknown, P. 109855 - 109855

Published: April 1, 2024

Language: Английский

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Electrochemical Multicomponent Cascade Radical Process Enabling Synthesis of Iodomethyl Spiropyrrolidinyl‐Oxindoles

Chinese Journal of Chemistry, Journal Year: 2024, Volume and Issue: 42(15), P. 1691 - 1698

Published: March 19, 2024

Comprehensive Summary A novel electrochemical multicomponent cascade reaction of indole‐tethered alkenes with CF 3 SO 2 Na and n ‐Bu 4 NI has been developed, which enables the rapid assembly spiropyrrolidinyl‐oxindoles in good yields. The experimental results DFT calculations suggest that this proceeds through oxidation Na, radical coupling alkene, spirocyclization, sulfinate, iodide substitution, water coupling. This strategy features mild conditions, easy‐to‐handle reactants, chemical finding not only enriches research contents but also provides a green for construction compared existing methodologies.

Language: Английский

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Recent advances on electrochemical generation of sulfonyl radical triggered cyclization of alkene/alkynes

Tetrahedron, Journal Year: 2025, Volume and Issue: 173, P. 134467 - 134467

Published: Jan. 12, 2025

Language: Английский

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Recent Advances on the Synthesis and Application of Tetrahydro‐β‐Carbolines

Advanced Synthesis & Catalysis, Journal Year: 2024, Volume and Issue: 366(14), P. 3050 - 3084

Published: May 22, 2024

Abstract Tetrahydro‐ β ‐carbolines (TH Cs) also known as tryptolines serve important structural elements in natural products and pharmaceutical compounds, they are utilized drug discovery. They display diverse bioactivities, including anticancer, antifungal, antiparasitic, anti‐ischemic, anti‐inflammatory, other activities. Besides their pharmacological biological significance, these motifs extensively used the production of bioactive compounds. This review is intended to summarize recent advancements chemistry this compound class, synthesis applications organic synthetic intermediates molecules.

Language: Английский

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Enzymatic and Chemo–catalytic Redox Deracemization: Recent Progress

ChemCatChem, Journal Year: 2024, Volume and Issue: 16(14)

Published: Feb. 5, 2024

Abstract The precise synthesis of chiral small molecules is a core research area in chemical science. Deracemization, an appealing technology that converts racemate to its single enantiomer with the same constitution theoretical 100 % yield, appears as straightforward and efficient strategy asymmetric synthesis. A cascading redox sequence was most employed approach drive deracemization through destroy recreate stereocenter given molecule. This review mainly focuses on progress driven by respective biocatalysis chemo–catalysis. In particular, each section will be subdivided according action modes, substrate classes perspectives future development.

Language: Английский

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Accessing pyrrolo[1,2-a]indole derivatives via visible-light-induced dearomatizative cyclization of indoles

Chemical Communications, Journal Year: 2024, Volume and Issue: 60(37), P. 4902 - 4905

Published: Jan. 1, 2024

Dearomatizative cyclization of indoles: a novel synthetic method for pyrrolo[1,2- ]indole derivatives through visible-light-induced cascade dearomatizative indoles with external nucleophiles has been developed.

Language: Английский

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Difunctionalization of Alkenes toward 3,3-Disubstituted and Dihydrobenzoindolines by Using an Imidazolylidene Palladacyclic Catalyst

The Journal of Organic Chemistry, Journal Year: 2025, Volume and Issue: unknown

Published: March 6, 2025

The synthesis of valuable 2a,3-dihydrobenzo[cd]indolines was successfully achieved by combining IPr-Pdcycle-OxaNaphthyl-catalyzed cross-coupling and proton-induced hydroarylation in a one-pot method. In situ-generated alkynyl-functionalized 3,3-disubstituted indolines were proved as the key intermediate, bearing broad scope substrates with diverse functional groups electronic properties.

Language: Английский

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A General Protocol toward Oxindoles Bearing C3‐Allylic Quaternary Stereocenter via Domino Reaction: A Concise Synthesis of Heterocycle‐Fused Indoline Alkaloids

Chinese Journal of Chemistry, Journal Year: 2024, Volume and Issue: unknown

Published: June 4, 2024

Comprehensive Summary An efficiently catalytic method toward the synthesis of indolin‐2‐ones featuring an allylic derived C3‐quaternary stereocenter via intramolecular Heck cyclization/Suzuki coupling N ‐substituted‐ ‐(2‐bromophenyl)acrylamides and organoboron reagents was successfully developed by using a 1,3‐bis(2,6‐diisopropylphenyl)acenaphthoimidazol‐2‐ylidene (AnIPr)‐ligated oxazoline palladacycle. It enabled very broad substrate scope tolerating different functional groups, electronic properties steric bulkiness. Notably, it revealed great potential to build diverse heterocycle‐fused indoline alkaloids same intermediate 3‐allyl‐1,3‐dimethylindolin‐2‐ one.

Language: Английский

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Electrochemical synthesis of γ-carbolinones via sulfonylation-triggered cyclization of indole-3-carboxamides

Organic & Biomolecular Chemistry, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 5, 2024

A novel electrochemical cyclization reaction of N -acryloyl-indole-3-carboxamides has been developed, which provides a new and efficient strategy for the synthesis γ-carbolinone derivatives.

Language: Английский

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