Recent advances in the synthesis of 1,1-diarylalkanes by transition-metal catalysis

2021 ◽  
Author(s):  
Md. Belal ◽  
Zheqi Li ◽  
Xiuqiang Lu ◽  
Guoyin Yin
Keyword(s):  
Transition Metal ◽  
Transition Metal Catalysis ◽  
Metal Catalysis ◽  
Recent Advances

scholarly journals Recent Developments in Transition-Metal Catalyzed Direct C–H Alkenylation, Alkylation, and Alkynylation of Azoles

Molecules ◽  
2020 ◽  
Vol 25 (21) ◽  
pp. 4970
Author(s):  
Su Chen ◽  
Prabhat Ranjan ◽  
Leonid G. Voskressensky ◽  
Erik V. Van der Eycken ◽  
Upendra K. Sharma
Keyword(s):  
Transition Metal ◽  
Transition Metal Catalysis ◽  
Significant Progress ◽  
Metal Catalysis ◽  
Bond Functionalization ◽  
Recent Advances ◽  
Regioselective Alkylation ◽  
Recent Developments ◽  
Transition Metal Catalyzed ◽  
Metal Catalyzed

The transition metal-catalyzed C–H bond functionalization of azoles has emerged as one of the most important strategies to decorate these biologically important scaffolds. Despite significant progress in the C–H functionalization of various heteroarenes, the regioselective alkylation and alkenylation of azoles are still arduous transformations in many cases. This review covers recent advances in the direct C–H alkenylation, alkylation and alkynylation of azoles utilizing transition metal-catalysis. Moreover, the limitations of different strategies, chemoselectivity and regioselectivity issues will be discussed in this review.

Quasi-nature catalysis. Rhodium-catalyzed C­C bond formation in air and water

2001 ◽  
Vol 73 (8) ◽  
pp. 1315-1318 ◽  
Author(s):  
Taisheng Huang ◽  
Sripathy Venkatraman ◽  
Yue Meng ◽  
Tien V. Nguyen ◽  
Daniel Kort ◽  
...  
Keyword(s):  
Transition Metal ◽  
Organic Synthesis ◽  
Bond Formation ◽  
Transition Metal Catalysis ◽  
Inert Gas ◽  
Natural Conditions ◽  
Metal Catalysis ◽  
Recent Advances ◽  
Gas Atmosphere

Transition-metal catalysis is out-grown from dry-boxes where the use of inert gas atmosphere and the exclusion of moisture have been essential. Such a restriction undoubtedly imposes limitations in the application of these reactions in organic synthesis and in the recycling of the catalysts. This article discusses some recent advances of rhodium-catalyzed carbon­carbon bond formations under the natural conditions of air and water.

Probing the versatility of metallo-electro hybrid catalysis: enabling access towards facile C–N bond formation

2020 ◽  
Vol 18 (44) ◽  
pp. 8994-9017
Author(s):  
Partha Pratim Sen ◽  
Neha Dagar ◽  
Swati Singh ◽  
Vishal Jyoti Roy ◽  
Vishali Pathania ◽  
...  
Keyword(s):  
Transition Metal ◽  
Bond Formation ◽  
Transition Metal Catalysis ◽  
Metal Catalysis ◽  
Recent Advances ◽  
Electro Catalysis

Metallo-electro catalysis has emerged as sustainable alternate to conventional transition metal methodologies. This review highlights the recent advances for the formation of C–N bonds by merging transition metal catalysis with electrosynthesis.

scholarly journals Recent Advances on O-Ethoxycarbonyl and O-Acyl Protected Cyanohydrins

Molecules ◽  
2021 ◽  
Vol 26 (15) ◽  
pp. 4691
Author(s):  
Héctor Manuel Torres Domínguez ◽  
Luis Mauricio Hernández Villaverde ◽  
Ronan Le Lagadec
Keyword(s):  
Transition Metal ◽  
Ion Source ◽  
Transition Metal Catalysis ◽  
Reaction Pathways ◽  
Protecting Group ◽  
Cyanide Ion ◽  
Metal Catalysis ◽  
Recent Advances

Ethoxycarbonyl cyanohydrins and O-acyl cyanohydrins are examples of O-protected cyanohydrins in which the protecting group presents an electrophilic center, contributing to additional reaction pathways. The first section of this review describes recent advances on the synthesis of O-ethoxycarbonyl and O-acyl protected cyanohydrins. Reactions using KCN or alkyl cyanoformates as the cyanide ion source are described, as well as organic and transition metal catalysis used in their preparation, including asymmetric cyanation. In a second part, transformations, and synthetic applications of O-ethoxycarbonyl/acyl cyanohydrins are presented. A variety of structures has been obtained starting from such protected cyanohydrins and, in particular, the synthesis of oxazoles, 1,4-diketones, 1,3-diketones, 2-vinyl-2-cyclopentenones through various methods are discussed.

Recent Advances in Decarboxylative Conversions of Cyclic Carbonates and Beyond

Synthesis ◽  
2021 ◽  
Author(s):  
Biwei Yan ◽  
Wusheng Guo
Keyword(s):  
Transition Metal ◽  
Catalytic System ◽  
Research Work ◽  
Building Blocks ◽  
Short Review ◽  
Transition Metal Catalysis ◽  
Cyclic Carbonates ◽  
Metal Catalysis ◽  
Recent Advances ◽  
Metal Catalyzed

Functionalized cyclic organic carbonates have emerged as valuable building blocks for the construction of interesting and useful molecules upon decarboxylation under transition metal catalysis in recent years. With suitable catalytic system, the development of chemo-, regio-, stereo- and enantioselective methods for the synthesis of useful and interesting compounds has advanced greatly. On the basis of previous research work on this topic, this short review will highlight the synthetic potential of cyclic carbonates under transition metal catalysis in last two years. 1 Introduction 2 Transition metal catalyzed decarboxylation of vinyl cyclic carbonates 3 Zwitterionic enolate chemistry based on transition metal catalysis 4 Decarboxylation of alkynyl cyclic carbonates and dioxazolones 5 Conclusions and perspectives

Fixation of sulfur dioxide into small molecules

2015 ◽  
Vol 13 (6) ◽  
pp. 1592-1599 ◽  
Author(s):  
Gang Liu ◽  
Congbin Fan ◽  
Jie Wu
Keyword(s):  
Sulfur Dioxide ◽  
Transition Metal ◽  
Small Molecules ◽  
Transition Metal Catalysis ◽  
Metal Catalysis ◽  
Radical Process ◽  
Metal Free ◽  
Recent Advances

Recent advances in the insertion of sulfur dioxide under transition metal catalysis or metal-free conditions via a radical process are presented.

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