A Synthesis of α-Alkyl Cycloenones by Pd-Catalyzed Suzuki–Miyaura Coupling with Cyclic Morita–Baylis–Hillman Adducts DOI

Shangzhang Li,

Mengni Pan,

Yue Shen

et al.

The Journal of Organic Chemistry, Journal Year: 2024, Volume and Issue: 89(8), P. 5239 - 5249

Published: April 8, 2024

We herein disclose a Pd-catalyzed Suzuki–Miyaura coupling of cyclic Morita–Baylis–Hillman adducts with organoboronic acids under mild conditions, which allows for rapid access to diverse α-alkyl substituted cycloenones. The advantage this method resides in the employment functionalized allyl alcohols as unprecedented electrophilic partners absence external activators.

Language: Английский

Recent Advances in Nickel Catalyzed Carbonylative Reactions via the Insertion of Carbon Monoxide DOI
Xinzhou Chen, Gang Chen, Zhong Lian

et al.

Chinese Journal of Chemistry, Journal Year: 2023, Volume and Issue: 42(2), P. 177 - 189

Published: Sept. 4, 2023

Comprehensive Summary Carbonyl compounds have attracted considerable attention due to their extensive applications in drug discovery. Furthermore, they are important synthetic intermediates for the construction of carbon‐carbon and carbon‐heteroatom bonds. Transition‐metal‐catalyzed carbonylation via insertion CO is one most efficient straightforward strategies access carbonyl compounds. However, transition‐metal‐catalyzed carbonylative reactions require expensive toxic noble‐metal catalysts. Therefore, there a growing demand exploration nickel‐catalyzed earth abundance low cost nickel. Compared with well‐established palladium‐catalyzed reactions, analogous transformations been relatively underdeveloped. This primarily because strongly binds nickel, often resulting catalyst poisoning. In recent years, some research groups focused on using surrogates or NN 2 pincer nickel circumvent formation Ni(CO) 4 . Nickel‐catalyzed has applied carbonyl‐containing compounds, such as ketones, carboxylic acids, thioesters, acyl chloride carboxamides.

Language: Английский

Citations

23

Nickel-Catalyzed Carbonylative Negishi Cross-Coupling of Unactivated Secondary Alkyl Electrophiles with 1 atm CO Gas DOI

Yetong Zhang,

Qihang Cao,

Yang Xi

et al.

Journal of the American Chemical Society, Journal Year: 2024, Volume and Issue: 146(12), P. 7971 - 7978

Published: March 14, 2024

We describe a nickel-catalyzed carbonylative cross-coupling of unactivated secondary alkyl electrophiles with the organozinc reagent at atmospheric CO gas, thus allowing expedient construction unsymmetric dialkyl ketones broad functional group tolerance. The leverage newly developed

Language: Английский

Citations

17

Nickel‐Catalyzed Four‐Component Carbonylation of Ethers and Olefins: Direct Access to γ‐Oxy Esters and Amides DOI

Le‐Cheng Wang,

Bo Chen, Youcan Zhang

et al.

Angewandte Chemie International Edition, Journal Year: 2022, Volume and Issue: 61(33)

Published: June 13, 2022

Abstract Multi‐component carbonylation of olefins, a reaction that installs both carbon–carbon(heteroatom) bond and carbonyl group across the double bond, is an attractive strategy for alkene functionalization. Herein, we developed novel nickel‐catalyzed four‐component olefins with ethers under low CO gas pressure. Using alcohols amines as partner, diverse γ ‐oxy‐substituted esters amides were produced in good yields excellent functional tolerance. Notably, Naftidrofuryl, medicine treatment cerebrovascular disease (CVD), can be synthesized by this process straightforwardly.

Language: Английский

Citations

37

Recent Advances in Nonprecious Metal Catalysis DOI
Michael C. Haibach, Shashank Shekhar, Tonia S. Ahmed

et al.

Organic Process Research & Development, Journal Year: 2023, Volume and Issue: 27(3), P. 423 - 447

Published: Feb. 17, 2023

Nonprecious-metal-catalyzed alternatives to powerful precious metal transformations are of increasing interest in academia and the pharmaceutical industry due lower cost, better sustainability, toxicity. With continual growth broad field nonprecious catalysis (NPMC), we have chosen highlight selected articles published from March June 2022 which intended examples NPMC that feel may be especially relevant development. We aim inspire academic industrial innovation through discussion herein.

Language: Английский

Citations

23

Nickel-Catalyzed Carbonylative Synthesis of α,β-Unsaturated Thioesters from Vinyl Triflates and Arylsulfonyl Chlorides DOI

Yong‐Wang Huo,

Xinxin Qi, Xiao‐Feng Wu

et al.

Organic Letters, Journal Year: 2022, Volume and Issue: 24(22), P. 4009 - 4013

Published: May 25, 2022

A straightforward and efficient synthesis of α,β-unsaturated thioesters has been developed via a nickel-catalyzed thiocarbonylation reaction vinyl triflates with arylsulfonyl chlorides. With Mo(CO)6 as both CO source reductant, variety were obtained in moderate to good yields very functional group compatibility. It is noteworthy that the present method first example on carbonylative by using chlorides coupling partner.

Language: Английский

Citations

22

Nickel-catalysed regio- and stereoselective acylzincation of unsaturated hydrocarbons with organozincs and CO DOI

Yangyang Weng,

Yetong Zhang,

Aneta Turlik

et al.

Nature Synthesis, Journal Year: 2023, Volume and Issue: 2(3), P. 261 - 274

Published: Jan. 5, 2023

Language: Английский

Citations

13

Nickel-catalyzed acylzincation of allenes with organozincs and CO DOI Creative Commons
Xianqing Wu, Chenglong Wang, Ning Liu

et al.

Nature Communications, Journal Year: 2023, Volume and Issue: 14(1)

Published: Oct. 31, 2023

Transition metal-catalyzed carbonylative reaction with CO gas are among the central task in organic synthesis, enabling construction of highly valuable carbonyl compound. Here, we show an earth-abundant nickel-catalyzed three-component tandem acylzincation/cyclization sequence allene and alkylzinc reagent 1 atm under mild conditions. This protocol is featured by broad functional group tolerance high selectivity, providing a rapid convenient synthetic method for diverse fully substituted benzotropone derivatives. Mechanistic studies reveal that installation cyano tethered to moiety enables regio- stereoselectivity this acylzincation allene, allowing selective formation three consecutive C-C bonds efficient manner.

Language: Английский

Citations

13

Ring‐Opening Cross‐Coupling/Cyclization Reaction of Cyclopropanols with Organic Compounds DOI
Fatemeh Doraghi,

Seyedeh Pegah Aledavoud,

Azadeh Fakhrioliaei

et al.

ChemistrySelect, Journal Year: 2023, Volume and Issue: 8(32)

Published: Aug. 23, 2023

Abstract Cyclopropanols, due to their particular chemistry, can participate in various synthetic reactions with retention or cleavage of the strained three‐membered ring. Direct cross‐coupling ring‐opening reaction such molecules access organic compounds, as ketones has great importance medicinal chemistry and material sciences. Hence, coupling reaction/cyclization cyclopropanols for constructing new valuable presence a transition metal catalyst under metal‐free conditions is described this context. The features are discussed, mechanisms challenging highlighted.

Language: Английский

Citations

12

Rh-Catalyzed Intramolecular Hydroarylation of Unactivated Alkenes via C–C Bond Activation DOI

Lang Cheng,

Qi Tang,

Ya‐Mei Dai

et al.

ACS Catalysis, Journal Year: 2023, Volume and Issue: 13(7), P. 4362 - 4368

Published: March 15, 2023

The transition-metal-catalyzed intramolecular hydroarylation of alkenes has been recognized as a straightforward approach for the construction 3,3-disubstituted 2,3-dihydrobenzofurans. reactions mainly rely on reductive Heck reaction aryl halides or direct C–H bond activation arenes bearing directing group. This work realizes Rh-catalyzed olefin-tethered benzocyclobutenols via C–C activation, which offers an alternative to 2,3-dihydrobenzofurans 4-β-keto moiety. methodology features 100% atom economy and pH- redox-neutral conditions, is applicable late-stage functionalization complex molecules. asymmetric variant also achieved with excellent enantioselectivities.

Language: Английский

Citations

11

Nickel/photoredox-catalyzed carbonylative transformations of α-phosphorus-, α-sulfur-, and α-boron-substituted alkyl halides DOI Creative Commons

Le‐Cheng Wang,

Xiao‐Feng Wu

Organic Chemistry Frontiers, Journal Year: 2024, Volume and Issue: 11(8), P. 2297 - 2305

Published: Jan. 1, 2024

A novel dual nickel/photoredox catalyzed direct amino- and alkoxycarbonylation of α-heteroatom substituted organohalides has been developed.

Language: Английский

Citations

4