Lithium amide catalyzed hydroboration of nitriles DOI
Pradip Ghosh, Axel Jacobi von Wangelin

Organic Chemistry Frontiers, Journal Year: 2020, Volume and Issue: 7(7), P. 960 - 966

Published: Jan. 1, 2020

An operationally facile hydroboration of nitriles is reported that utilizes the stable and inexpensive catalyst LiN(SiMe3)2. The reaction displayed good tolerance functional groups also converted carbonyl derivatives.

Language: Английский

Recent Advances in Aluminum Compounds for Catalysis DOI Creative Commons

Congjian Ni,

Xiaoli Ma, Zhi Yang

et al.

European Journal of Inorganic Chemistry, Journal Year: 2022, Volume and Issue: 2022(10)

Published: Jan. 7, 2022

Abstract This review highlights recent advances in the research of organoaluminum complexes catalysis. Many fundamental transformations can be carried out by aluminum catalysts, such as hydroboration, hydroamination, copolymerization and CO 2 insertion reactions, hydrosilylation, hydroacetylenation carbodiimides, which make use abundant reserves earth‘s crust to accomplish transformation. Recent field has shown that these systems have extraordinary catalytic activity are inexpensive, abundant, environmentally friendly.

Language: Английский

Citations

46

The green chemistry paradigm in modern organic synthesis DOI
Sergei G. Zlotin, Ksenia S. Egorova, Valentine P. Ananikov

et al.

Russian Chemical Reviews, Journal Year: 2023, Volume and Issue: 92(12), P. RCR5104 - RCR5104

Published: Dec. 1, 2023

After the appearance of green chemistry concept, which was introduced in vocabulary early 1990s, its main statements have been continuously developed and modified. Currently, there are 10–12 cornerstones that should form basis for an ideal chemical process. This review analyzes accumulated experience achievements towards design products processes reduce or eliminate use generation hazardous substances. The presents views leading Russian scientists specializing various fields this subject, including homogeneous heterogeneous catalysis, fine basic organic synthesis, electrochemistry, polymer chemistry, based on bio-renewable feedstocks energetic compounds materials. A new approach to quantitative evaluation environmental friendliness by authors is described. <br> bibliography includes 1761.

Language: Английский

Citations

39

Applications of low-valent compounds with heavy group-14 elements DOI

Ruksana Akhtar,

Kumar Gaurav,

Shabana Khan

et al.

Chemical Society Reviews, Journal Year: 2024, Volume and Issue: 53(12), P. 6150 - 6243

Published: Jan. 1, 2024

We have compiled the recent progress of low-valent group-14 compounds in catalysis, polymerization, small molecule activation, thin film deposition, photophysical properties, and medicinal properties.

Language: Английский

Citations

14

Inorganometallics (Transition Metal–Metalloid Complexes) and Catalysis DOI Creative Commons
Bogdan Marciniec, Cezary Pietraszuk, Piotr Pawluć

et al.

Chemical Reviews, Journal Year: 2021, Volume and Issue: 122(3), P. 3996 - 4090

Published: Dec. 30, 2021

While the formation and breaking of transition metal (TM)-carbon bonds plays a pivotal role in catalysis organic compounds, reactivity inorganometallic species, that is, those involving (TM)-metalloid (E) bond, is key importance most conversions metalloid derivatives catalyzed by TM complexes. This Review presents background its development over last 15 years. The results mechanistic studies presented are related to occurrence TM-E TM-H compounds as reactive intermediates catalytic transformations selected metalloids (E = B, Si, Ge, Sn, As, Sb, or Te). illustrates significance inorganometallics following processes: addition metalloid-hydrogen metalloid-metalloid unsaturated compounds; activation functionalization C-H C-X with hydrometalloids bismetalloids; vinylmetalloids, halides, sulfonates; dehydrocoupling hydrometalloids. first on sums up developments methods for synthesis organometalloid their applications advanced part tandem reactions.

Language: Английский

Citations

56

Heavier Tetrylenes as Single Site Catalysts DOI

Nilanjana Sen,

Shabana Khan

Chemistry - An Asian Journal, Journal Year: 2021, Volume and Issue: 16(7), P. 705 - 719

Published: Feb. 15, 2021

Abstract An overview of the development compounds with heavier low‐valent group 14 elements (known as tetrylenes) single component catalyst for organic transformation has been provided. Compounds possess stereochemically active lone pairs and energetically accessible π‐antibonding orbitals, thereby resembling electronic configuration transition‐metal compounds. Such known small molecule activation since Power's report dihydrogen by a digermyne, but their utilization in catalysis remained “Holy Grail” main chemistry. In recent years, numerous methodologies have discovered epitomizing use Si(II), Ge(II) Sn(II) site catalysts hydroboration aldehydes, ketones, pyridines, cyanosilylation aldehydes N‐formylations aromatic amines, dehydrocoupling reactions. This mini‐review highlights these significant developments an emphasis on mechanistic investigation.

Language: Английский

Citations

55

Recent advances in pincer–nickel catalyzed reactions DOI
Vinay Arora,

Himani Narjinari,

Pran Gobinda Nandi

et al.

Dalton Transactions, Journal Year: 2021, Volume and Issue: 50(10), P. 3394 - 3428

Published: Jan. 1, 2021

The utility of pincer−nickel complexes in catalyzing reactions such as cross−coupling, oxidation, (de)hydrogenation, hydrofunctionalization, C−H activation and CO2 functionalization has been reviewed from a synthetic mechanistic point view.

Language: Английский

Citations

54

Manganese‐Catalyzed Hydroborations with Broad Scope DOI Creative Commons
Pradip Ghosh, Axel Jacobi von Wangelin

Angewandte Chemie International Edition, Journal Year: 2021, Volume and Issue: 60(29), P. 16035 - 16043

Published: April 24, 2021

Reductive transformations of easily available oxidized matter are at the heart synthetic manipulation and chemical valorization. The applications catalytic hydrofunctionalization benefit from use liquid reducing agents operationally facile setups. Metal-catalyzed hydroborations provide a highly prolific platform for reductive valorizations stable C=X electrophiles. Here, we report an especially facile, broad-scope reduction various functions including carbonyls, carboxylates, pyridines, carbodiimides, carbonates under very mild conditions with inexpensive pre-catalyst Mn(hmds)2 . reaction could be successfully applied to depolymerizations.

Language: Английский

Citations

54

Selective oxidation of alkenes to carbonyls under mild conditions DOI
Jun Xu, Yilan Zhang, Xiao‐Guang Yue

et al.

Green Chemistry, Journal Year: 2021, Volume and Issue: 23(15), P. 5549 - 5555

Published: Jan. 1, 2021

This study demonstrates a photo-induced and tetrahydrofuran (THF)-based radical strategy for the selective oxidation of alkenes to carbonyls using O2 as sole oxidant water solvent.

Language: Английский

Citations

49

Zinc Hydride Catalyzed Chemoselective Hydroboration of Isocyanates: Amide Bond Formation and C=O Bond Cleavage DOI
Rajata Kumar Sahoo, Nabin Sarkar, Sharanappa Nembenna

et al.

Angewandte Chemie International Edition, Journal Year: 2021, Volume and Issue: 60(21), P. 11991 - 12000

Published: Feb. 27, 2021

Abstract Herein, a remarkable conjugated bis‐guanidinate (CBG) supported zinc hydride, [{LZnH} 2 ; L={(ArHN)(ArN)−C=N−C=(NAr)(NHAr); Ar=2,6‐Et ‐C 6 H 3 }] ( I ) catalyzed partial reduction of heteroallenes via hydroboration is reported. A large number aryl and alkyl isocyanates, including electron‐donating withdrawing groups, undergo to obtain selectively N‐boryl formamide, bis(boryl) hemiaminal methyl amine products. The compound effectively catalyzes the chemoselective various in which construction amide bond occurs. Isocyanates deoxygenation reaction, C=O cleaves, leading amines. Several functionalities such as nitro, cyano, halide, alkene groups are well‐tolerated. Furthermore, series kinetic, control experiments structurally characterized intermediates suggest that hydride species responsible for all steps breaking bond.

Language: Английский

Citations

48

Multicomponent Bifunctionalization of Methyl Ketones Enabled by Heterogeneous Catalysis and Solar Photocatalysis in Water DOI
Jun Xu, Lei He,

Chenfeng Liang

et al.

ACS Sustainable Chemistry & Engineering, Journal Year: 2021, Volume and Issue: 9(40), P. 13663 - 13671

Published: Sept. 29, 2021

Herein, a novel and green multicomponent transformation for the α-bifunctionalization of methyl ketones enabled by heterogeneous catalysis solar photocatalysis has been described. This reaction is performed in water under an air atmosphere, affording corresponding products moderate-to-good yield. Our shows successful combination photocatalysis, giving sustainable practical alternative modification ketone derivatives.

Language: Английский

Citations

46