Transition Metal Catalyzed Enantioselective Migratory Functionalization Reactions of Alkenes through Chain‐Walking DOI
Min Zhang,

Yuqi Ji,

Chun Zhang

et al.

Chinese Journal of Chemistry, Journal Year: 2022, Volume and Issue: 40(13), P. 1608 - 1622

Published: April 3, 2022

Comprehensive Summary “Chain‐walking” reactions could realize to modify a molecule at the position far away from active site. It has been hot topic in research field of organic synthesis. As number achievements have made by researchers, products transition metal‐catalyzed chain‐walking be obtained with good enantioselectivity. This review summarized researches on asymmetric catalyzed metal past decade. These works are classified according species catalysts.

Language: Английский

NiH-Catalyzed Functionalization of Remote and Proximal Olefins: New Reactions and Innovative Strategies DOI
You Wang, Yuli He, Shaolin Zhu

et al.

Accounts of Chemical Research, Journal Year: 2022, Volume and Issue: 55(23), P. 3519 - 3536

Published: Nov. 9, 2022

Transition metal hydride catalyzed functionalization of remote and proximal olefins has many advantages over conventional cross-coupling reactions. It avoids the separate, prior generation stoichiometric amounts organometallic reagents use preformed reagents, which are sometimes hard to access may compromise functional group compatibility. The migratory insertion complexes generated in situ into readily available alkene starting materials, hydrometalation process, provides an attractive straightforward route alkyl intermediates, can undergo a variety sequential In particular, with synergistic combination chain-walking chemistry nickel, NiH-catalyzed undergone particularly intense development past few years. This Account aims chronicle progress made this arena terms activation modes, diverse functionalizations, chemo-, regio-, enantioselectivity.We first provide brief introduction general reaction mechanisms. Taking hydroarylation as example, four oxidation states Ni have allowed us develop two different strategies form final product: Ni(I)-H/X-Ni(II)-H platform that relies on reductants Ni(I/II/III) cycle redox-neutral or FG-Ni(II)-H reacts substrate forms products via Ni(0/II) pathway. We also demonstrate functionalization, including C-C bond-forming reactions more challenging C-N/C-S could be realized. Moreover, employment appropriate chiral ligands successfully realize corresponding asymmetric hydrofunctionalization olefins, hydroalkylation, hydroarylation, hydroalkenylation, hydroalkynylation, hydroamination. Interestingly, enantio-determining step enantioselective hydronickelation, selective oxidative addition, reductive elimination. To hydrofunctionalization, we developed ligand relay catalytic strategy simple ligands, for second coupling. novel design single, possibly structurally complex promote both steps success multicomponent convenient approach gain molecules. Finally, halides used olefin precursors cross-electrophile coupling Applications these discussed. hope will inspire future field overcome key challenges, conceptually new strategies, high-performance systems enhanced reactivity selectivity, cutting-edge catalyst design, further mechanistic studies.

Language: Английский

Citations

146

Palladium-catalyzed enantioselective carbonylation reactions DOI Creative Commons
Jin‐Bao Peng,

Xin‐Lian Liu,

Lin Li

et al.

Science China Chemistry, Journal Year: 2022, Volume and Issue: 65(3), P. 441 - 461

Published: Jan. 5, 2022

Abstract Carbonylation, one of the most powerful approaches to preparation carbonylated compounds, has received significant attention from researchers active in various fields. Indeed, impressive progress been made on this subject over past few decades. Among types carbonylation reactions, asymmetric is a straightforward methodology for constructing chiral compounds. Although rhodium-catalyzed enantioselective hydroformylations have discussed several elegant reviews, general review palladium-catalyzed carbonylations still missing. In review, we summarize and discuss recent achievements reactions. Notably, review’s contents are categorized by reaction type.

Language: Английский

Citations

80

Palladium-Catalyzed Difluorocarbene Transfer Enabled Divergent Synthesis of γ-Butenolides and Ynones from Iodobenzene and Terminal Alkynes DOI

Heyun Sheng,

Zhiwei Chen, Qiuling Song

et al.

Journal of the American Chemical Society, Journal Year: 2024, Volume and Issue: 146(2), P. 1722 - 1731

Published: Jan. 4, 2024

Herein, we report a ligand-controlled palladium-catalyzed method that enables the synthesis of ynones and γ-butenolides with excellent regioselectivity from same set readily available aryl iodides, acetylenes, BrCF2CO2K. In this reaction, [PdII]═CF2 does demonstrate electrophilicity can generate CO when reacting H2O. It is environmentally friendly safe compared to traditional methods, current protocol us afford in high yields functionality tolerance. Moreover, esters also be obtained corresponding phenols alcohols utilizing strategy. The success late-stage functionalization bioactive compounds further illustrates synthetic utility material development drug discovery.

Language: Английский

Citations

19

Enantioselective NiH‐Catalyzed Reductive Hydrofunctionalization of Alkenes DOI
Yuli He, Jian Chen, Xiaoli Jiang

et al.

Chinese Journal of Chemistry, Journal Year: 2021, Volume and Issue: 40(5), P. 651 - 661

Published: Dec. 3, 2021

Comprehensive Summary Enantioselective NiH‐catalyzed reductive hydrofunctionalization of olefins has attracted much attention in recent years. Using simple chiral ligands, a wide array functionalized and electrophiles can undergo diverse transformations to afford hydrofunctionalized products, regio‐ enantioselectively. These processes avoid the prior preparation organometallic reagents, construct stereogenic center at carbon originating either from olefin or electrophile. This review discusses background, major progress mechanistic investigations this reaction.

Language: Английский

Citations

89

A relay catalysis strategy for enantioselective nickel-catalyzed migratory hydroarylation forming chiral α-aryl alkylboronates DOI Creative Commons
Yao Zhang, Jiawei Ma, Jian Chen

et al.

Chem, Journal Year: 2021, Volume and Issue: 7(11), P. 3171 - 3188

Published: Nov. 1, 2021

Language: Английский

Citations

77

Facile Synthesis of Chiral Arylamines, Alkylamines and Amides by Enantioselective NiH‐Catalyzed Hydroamination DOI

Lingpu Meng,

Jingjie Yang,

Mei Duan

et al.

Angewandte Chemie International Edition, Journal Year: 2021, Volume and Issue: 60(44), P. 23584 - 23589

Published: Aug. 27, 2021

Regio- and enantioselective hydroarylamination, hydroalkylamination hydroamidation of styrenes have been developed by NiH catalysis with a simple bioxazoline ligand under mild conditions. A wide range enantioenriched benzylic arylamines, alkylamines amides can be easily accessed nitroarenes, hydroxylamines dioxazolones, respectively as amination reagents. The chiral induction in these reactions is proposed to proceed through an enantiodifferentiating syn-hydronickellation step.

Language: Английский

Citations

74

Recent advances in nickel-catalyzed asymmetric hydrofunctionalization of alkenes DOI Creative Commons

Xiao-Ya Sun,

Bo-Ying Yao,

Bin Xuan

et al.

Chem Catalysis, Journal Year: 2022, Volume and Issue: 2(11), P. 3140 - 3162

Published: Nov. 1, 2022

Language: Английский

Citations

68

Nickel‐Catalyzed Switchable Site‐Selective Alkene Hydroalkylation by Temperature Regulation** DOI
Jia‐Wang Wang, Deguang Liu, Zhe Chang

et al.

Angewandte Chemie International Edition, Journal Year: 2022, Volume and Issue: 61(31)

Published: May 25, 2022

Regiodivergent alkene functionalization that produces either regioisomer starting from the same raw materials is desirable. Herein, we report a nickel-catalyzed switchable site-selective hydroalkylation. The selection of reaction temperatures leads to protocols provide regiodivergent hydroalkylated products single substrate. This protocol allows convenient synthesis α- and β-branched protected amines, both which are important fields pharmaceutical chemistry biochemistry. In addition, enantioenriched alkylamines can be accessed in catalytic asymmetric variant. Preliminary mechanistic studies indicate formation more stable nickelacycle provides driving force migration. thermodynamic kinetic properties different reduction elimination intermediates responsible for site-selectivity.

Language: Английский

Citations

67

Ligand Relay Catalysis Enables Asymmetric Migratory Reductive Acylation of Olefins or Alkyl Halides DOI
Xiaoli Jiang,

Feng‐Tao Sheng,

Yao Zhang

et al.

Journal of the American Chemical Society, Journal Year: 2022, Volume and Issue: 144(47), P. 21448 - 21456

Published: Nov. 17, 2022

Design of ligands in transition-metal catalyzed reactions is challenging, especially asymmetric transformations. With each step the catalytic cycle promoted by its privileged ligand and different steps well-connected dynamic exchange, synergistic combination multiple could potentially enhance efficiency selectivity. Now, this concept has been applied to NiH-catalyzed remote hydroacylation olefins migratory acylation alkyl halides with excellent regio- enantioselectivity, utilizing two simple ligands, one for chain-walking other acylation. Starting from abundant alkenes/alkyl carboxylic acids, a wide range enantioenriched chiral α-aryl ketones can be efficiently accessed under mild conditions.

Language: Английский

Citations

59

Nickel‐Catalyzed Asymmetric Hydroaryloxy‐ and Hydroalkoxycarbonylation of Cyclopropenes DOI
Rongrong Yu,

Song‐Zhou Cai,

Can Li

et al.

Angewandte Chemie International Edition, Journal Year: 2022, Volume and Issue: 61(36)

Published: July 15, 2022

Abstract The asymmetric Reppe carbonylation reactions provide a straightforward access to α ‐chiral carbonyl compounds. reported paradigms predominantly adopted precious palladium as the catalyst. Here we report nickel‐catalyzed of cyclopropenes with phenyl formate and CO/ROH, respectively. This asymmetrical synthetic protocol features high atom economy, good functional group tolerance, which rapidly constructs polysubstituted cyclopropanecarboxylic derivatives excellent diastereo‐ enantioselectivity. utility is demonstrated by facile conversion chiral products into bioactive molecules such (−)‐Tranylcypromine (−)‐Lemborexant.

Language: Английский

Citations

56