How to make C–N bonds using boronic acids and their derivatives without transition metals

2020 ◽  
Vol 49 (15) ◽  
pp. 5159-5177
Author(s):  
Silvia Roscales ◽  
Aurelio G. Csáky
Keyword(s):  
Transition Metal ◽  
Transition Metals ◽  
Boronic Acids ◽  
Transition Metal Catalysis ◽  
Metal Catalysis ◽  
Nitrosation Reactions

No need for transition-metal catalysis in amination, amidation, nitration or nitrosation reactions with boron derivatives as reagents.

Asymmetric desymmetrization of alkene-, alkyne- and allene-tethered cyclohexadienones using transition metal catalysis

2021 ◽  
Author(s):  
Tao Shu ◽  
Janine Cossy
Keyword(s):  
Transition Metal ◽  
Transition Metals ◽  
Transition Metal Catalysis ◽  
Chiral Ligands ◽  
Domino Reactions ◽  
Metal Catalysis ◽  
Catalytic Asymmetric

This review is covering the recent development of catalytic asymmetric domino reactions for the desymmetrization of alkene-, alkyne- and allene-tethered cyclohexadienones using transition metals and chiral ligands.

Transition metal catalysis—a unique road map in the stereoselective synthesis of 1,3-polyols

2017 ◽  
Vol 15 (4) ◽  
pp. 733-761 ◽  
Author(s):  
Pradeep Kumar ◽  
Divya Tripathi ◽  
Brijesh M. Sharma ◽  
Namrata Dwivedi
Keyword(s):  
Transition Metal ◽  
Transition Metals ◽  
Stereoselective Synthesis ◽  
Transition Metal Catalysis ◽  
Present Review ◽  
Metal Catalysis ◽  
Catalytic Transformations ◽  
Road Map ◽  
Mechanistic Pathway

The present review summarizes recent diverse reactions employed in the formation of 1,3-polyols providing an overview of the mechanistic pathway and the enantioselectivity obtained, in terms of the properties of transition metals directly involved in the catalytic transformations and their interaction with various ligands.

Carbon‐Sulfur Bond Constructions: From Transition‐Metal Catalysis to Sustainable Catalysis

2021 ◽  
Author(s):  
Pratheepkumar Annamalai ◽  
Ke‐Chien Liu ◽  
Satpal Singh Badsara ◽  
Chin‐Fa Lee
Keyword(s):  
Transition Metal ◽  
Transition Metal Catalysis ◽  
Metal Catalysis ◽  
Sulfur Bond

An electrochemical perspective on the roles of ligands in the merger of transition-metal catalysis and electrochemistry

2020 ◽  
Author(s):  
Ke-Yin Ye ◽  
Jun-Song Zhong ◽  
Yi Yu ◽  
Zhaojiang Shi
Keyword(s):  
Transition Metal ◽  
Organic Synthesis ◽  
Transition Metal Catalysis ◽  
Metal Catalysis

The merger of transition-metal catalysis and electrochemistry has been emerging as a very versatile and robust synthetic tool in organic synthesis. Like in their non-electrochemical variants, ligands also play crucial...

Insertion Reaction of 2-Halo-N-allylanilines with K2S Involving Trisulfur Radical Anion: Synthesis of Benzothiazole Derivatives under Transition-Metal-Free Conditions

Synthesis ◽  
2020 ◽  
Author(s):  
Yan-Wei Zhao ◽  
Shun-Yi Wang ◽  
Xin-Yu Liu ◽  
Tian Jiang ◽  
Weidong Rao
Keyword(s):  
Transition Metal ◽  
Radical Anion ◽  
Radical Cyclization ◽  
Transition Metal Catalysis ◽  
Insertion Reaction ◽  
Metal Catalysis ◽  
Metal Free ◽  
Benzothiazole Derivatives

AbstractA synthesis of benzothiazole derivatives through the reaction of 2-halo-N-allylanilines with K2S in DMF is developed. The trisulfur radical anion S3·–, which is generated in situ from K2S in DMF, initiates the reaction without transition-metal catalysis or other additives. In addition, two C–S bonds are formed and heteroaromatization of benzothiazole is triggered by radical cyclization and H-shift.

scholarly journals Enamine/Transition Metal Combined Catalysis: Catalytic Transformations Involving Organometallic Electrophilic Intermediates

2019 ◽  
Vol 377 (6) ◽  
Author(s):  
Samson Afewerki ◽  
Armando Córdova
Keyword(s):  
Transition Metal ◽  
Metal Complex ◽  
Carbonyl Compounds ◽  
Transition Metal Catalysis ◽  
Chemical Transformations ◽  
Considerable Effort ◽  
Metal Catalysis ◽  
First Report ◽  
Wide Range ◽  
Selective Chemical

AbstractThe concept of merging enamine activation catalysis with transition metal catalysis is an important strategy, which allows for selective chemical transformations not accessible without this combination. The amine catalyst activates the carbonyl compounds through the formation of a reactive nucleophilic enamine intermediate and, in parallel, the transition metal activates a wide range of functionalities such as allylic substrates through the formation of reactive electrophilic π-allyl-metal complex. Since the first report of this strategy in 2006, considerable effort has been devoted to the successful advancement of this technology. In this chapter, these findings are highlighted and discussed.

Sign in / Sign up

Export Citation Format

Share Document