The Application Research on Cu-Al/Sba-15 Bimetallic Synergistic Effect in the C-X Bond Sequential Assembly DOI
Mengyu Pei,

Xianghao Luo,

Quan Tang

et al.

SSRN Electronic Journal, Journal Year: 2022, Volume and Issue: unknown

Published: Jan. 1, 2022

The coupling reaction allows simple structural fragments to be constructed and sequentially assembled by C-X bond synthesize a variety of active molecular frameworks. Different from the traditional single-metal catalyst, synergistic effect bimetal provides special catalytic activity that cannot obtained thus emerging as an efficient alternative mode. In this paper, we used Cu-Al bimetallic heterogeneous mesoporous materials participate in sequential assembly C-S C-N bonds, which effectively catalyzed synthesis 2-substituted benzothiazole heterocyclic systems. addition, GW610 with antitumor was synthesized easily efficiently strategy.

Language: Английский

Divergent Conversion of Double Isocyanides with Alkenyl Bromide to Polysubstituted Pyrroles and 4-Imino-4,5-dihydropyrrolo[3,4-b]pyrrol-6(1H)-one Derivatives by Pd-Catalyzed Tandem Cyclization Reactions DOI

Zhi‐Lin Ren,

Ji‐Ying Qiu,

Ling-Ling Yuan

et al.

Organic Letters, Journal Year: 2022, Volume and Issue: 24(3), P. 859 - 863

Published: Jan. 12, 2022

Herein a novel and concise approach to pyrrole skeletons via Pd-catalyzed tandem cyclization reactions is investigated. The substrates for the transformation could be readily prepared by phosphoric acid-catalyzed Ugi with available starting materials. In this strategy, two isocyanides participate in sequential isocyanide insertion reactions, chemoselectivity of products regulated steric hindrance isocyanide. A plausible mechanism formation corresponding adducts proposed.

Language: Английский

Citations

19

Pd-catalyzed imine-directed one-pot access to polysubstituted pyrrolesviatandem triple isocyanide insertion/aza-Nazarov cyclization reactions DOI
Jun Li, Zhi‐Wen Zhao,

Shuang Zheng

et al.

Organic Chemistry Frontiers, Journal Year: 2023, Volume and Issue: 10(13), P. 3252 - 3258

Published: Jan. 1, 2023

A novel one-pot method for synthesizing polysubstituted pyrrole derivatives via three-component reactions of alkenyl bromides, amines, and isocyanides is reported by Pd catalysis, without additional ligands, with the orderly insertion three isocyanide molecules.

Language: Английский

Citations

12

Visible-light-driven photocyclization reaction: photocatalyst-free mediated intramolecular N–N coupling for the synthesis of 2H-indazole-3-carboxamides from aryl azides DOI

Jinni Liu,

Na Liu, Qing‐Qing Yang

et al.

Organic Chemistry Frontiers, Journal Year: 2021, Volume and Issue: 8(19), P. 5296 - 5302

Published: Jan. 1, 2021

A visible-light-driven photocyclization reaction of aryl azides to access 2 H -indazole-3-carboxamides in moderate excellent yields has been realized efficiently under photocatalyst-free and external additive-free conditions.

Language: Английский

Citations

19

The synthesis and structure of an amazing and stable carbonized material Cu-PC@OFM and its catalytic applications in water with mechanism explorations DOI

Anqi Tian,

Xianghao Luo,

Zhi‐Lin Ren

et al.

New Journal of Chemistry, Journal Year: 2021, Volume and Issue: 45(21), P. 9614 - 9620

Published: Jan. 1, 2021

An amazing and stable carbonized octahedral frame material Cu-PC@OFM was synthesized characterized through HRTEM, SEM, XRD, XPS, Raman spectroscopy nitrogen adsorption/desorption analysis.

Language: Английский

Citations

16

Hydrogen bond-promoted regio- and stereoselective synthesis of isoindoline derivatives through Pd-catalyzed isocyanide insertion reaction involving aziridines DOI

Shuang Zheng,

Haojie Fan,

Shanshan Liu

et al.

Organic Chemistry Frontiers, Journal Year: 2024, Volume and Issue: 11(6), P. 1775 - 1781

Published: Jan. 1, 2024

We have successfully demonstrated an efficient and practical Pd-catalyzed reaction between aziridine isocyanide, leading to the synthesis of isoindoline derivatives in moderate good yields.

Language: Английский

Citations

2

Preparation of a Novel pH-responsive Fluorescent Probe Based on an Imidazo[1,2-a]indole Fluorophore and its Application in Detecting Extremely Low pH in Saccharomyces cerevisiae DOI

Yanhao Xu,

Ruikang Duan,

Hao Liu

et al.

Journal of Fluorescence, Journal Year: 2021, Volume and Issue: 31(5), P. 1219 - 1225

Published: July 13, 2021

Language: Английский

Citations

12

Construction of Tetrazole Derivatives via Sequential Ugi‐N3/Pd‐Catalyzed Isocyanide Insertion Reactions DOI

Hao‐Jie Fan,

A‐Ting Li,

Jun Li

et al.

ChemistrySelect, Journal Year: 2023, Volume and Issue: 8(5)

Published: Feb. 1, 2023

Abstract Herein, a straightforward method for the construction of tetrazole derivatives has been achieved through Pd‐catalyzed isocyanide insertion reactions, which is good extension response multi‐molecule isocyanides. The Ugi‐N 3 reaction was introduced to transformation enrich diversity skeleton structures. commercially available starting materials and moderate yields make this valuable tool generating N‐containing heterocyclic compounds.

Language: Английский

Citations

4

A Facile Synthesis of Indole Derivatives by a Palladium‐Catalyzed Process Initiated from Ugi Adducts and their Antifungal Activities DOI

Ji‐Ying Qiu,

Ding Yuan, Jingjing Yu

et al.

ChemistrySelect, Journal Year: 2021, Volume and Issue: 6(45), P. 12921 - 12925

Published: Dec. 2, 2021

Abstract In this work, an efficient synthesis of indole derivatives through palladium‐catalyzed double isocyanide insertion reactions has been developed. The reaction intermediates could be readily obtained by Ugi reactions. transformation features broad functional‐group compatibility, commercially available starting materials, and moderate to good yields. Furthermore, the bioactivities synthesized compounds were evaluated in mycelial growth tests against Penicilium digitatum Colletotrichun gloeosporioides, showed potential antifungal activities.

Language: Английский

Citations

9

Iridium-Catalyzed Direct Amidation of Imidazoles at the C-2 Position with Isocyanates in the Presence of Hydrosilanes Leading to Imidazole-2-Carboxamides DOI
Yoshiya Fukumoto,

Motohiro Shiratani,

Hikaru Noguchi

et al.

Synthesis, Journal Year: 2021, Volume and Issue: 53(17), P. 3011 - 3018

Published: Jan. 27, 2021

Abstract Regioselective coupling reaction of N-substituted imidazoles with isocyanates in the presence a stoichiometric amount hydrosilanes catalyzed by Ir4(CO)12 to give imidazole-2-carboxamides is reported. Imidazoles bearing an (O-silyl)carboximidate group at 2-position appear be initially formed reaction; these are then hydrolyzed final products situ. The addition hydrosilane was essential for catalytic proceed. Substituents on imidazole ring had no effect reaction, except certain bulky substituents such as t Bu and Ph groups 4-position. Triazoles 4-methyl-4H-1,2,4-triazole 1-methyl-1H-1,2,4-triazole were also applicable this C–H amidation, latter proceeded regioselectively carbon atom between sp3 sp2 nitrogen atoms ring, not two atoms.

Language: Английский

Citations

8

The application research on Cu-Al@SBA-15 bimetallic synergistic effect in the C-X bond sequential assembly DOI
Mengyu Pei,

Xianghao Luo,

Quan Tang

et al.

Catalysis Communications, Journal Year: 2022, Volume and Issue: 172, P. 106548 - 106548

Published: Nov. 3, 2022

Language: Английский

Citations

3