Chemistry of compounds based on 1, 2, 3-triazolylidene-type mesoionic carbenes

R Maity, B Sarkar - JACS au, 2021 - ACS Publications
Mesoionic carbenes (MICs) of the 1, 2, 3-triazolylidene type have established themselves as
a popular class of compounds over the past decade. Primary reasons for this popularity are …

Applications of catalysis in hydroboration of imines, nitriles, and carbodiimides

AR Bazkiaei, M Findlater, AEV Gorden - Organic & Biomolecular …, 2022 - pubs.rsc.org
The catalytic hydroboration of imines, nitriles, and carbodiimides is a powerful method of
preparing amines which are key synthetic intermediates in the synthesis of many value …

Pushing the Upper Limit of Nucleophilicity Scales by Mesoionic N‐Heterocyclic Olefins

A Eitzinger, J Reitz, PW Antoni, H Mayr… - Angewandte Chemie …, 2023 - Wiley Online Library
Abstract A series of mesoionic, 1, 2, 3‐triazole‐derived N‐heterocyclic olefins (mNHOs),
which have an extraordinarily electron‐rich exocyclic CC‐double bond, was synthesized …

Intermediates, isolation and mechanistic insights into zinc hydride-catalyzed 1, 2-regioselective hydrofunctionalization of N-heteroarenes

RK Sahoo, N Sarkar, S Nembenna - Inorganic Chemistry, 2022 - ACS Publications
The conjugated bis-guanidinate-supported zinc hydride [{LZnH} 2; L={(ArHN)(ArN)–C═ N–
C═(NAr)(NHAr); Ar= 2, 6-Et2-C6H3}](I)-catalyzed highly demanding exclusive 1, 2 …

Recent advances of mesoionic N-heterocyclic olefins

Q Liang, D Song - Dalton Transactions, 2022 - pubs.rsc.org
This Perspective article highlights the recent development of mesoionic N-heterocyclic
olefins (mNHOs), where the exo-cyclic olefinic carbon is not bonded to strongly electron …

Metal‐Free Catalytic Hydroboration of Unsaturated Compounds: A Greener Strategy for the Synthesis of Organoboranes

A Das, TK Panda - ChemCatChem, 2023 - Wiley Online Library
This review discusses the immense progress made over recent years in metal‐free catalytic
hydroboration. Reactions with several unsaturated functional groups, such as alkynes …

Cobalt-catalyzed regioselective 1, 2-hydroboration of N-heteroarenes

NK Meher, PK Verma, K Geetharani - Organic Letters, 2023 - ACS Publications
Regioselective hydroboration of pyridines to 1, 2-dihydropyridines remains a significant
challenge for the synthesis of valuable nitrogenous bioactive molecules. Herein, we report a …

Pyridinium‐Derived Mesoionic N‐Heterocyclic Olefins (py‐mNHOs)

Q Sun, A Eitzinger, R Esken, PW Antoni… - Angewandte Chemie …, 2024 - Wiley Online Library
Mesoionic polarization allows access to electron‐rich olefins that have found application as
organocatalysts, ligands, or nucleophiles. Herein, we report the synthesis and …

Ruthenium(II)-Catalyzed Regioselective 1,2-Hydrosilylation of N-Heteroarenes and Tetrel Bonding Mechanism

D Behera, S Thiyagarajan, PK Anjalikrishna… - ACS …, 2021 - ACS Publications
An efficient regioselective dearomatization of N-heteroarenes using a ruthenium precatalyst
[Ru-(p-cymene)(PCy3) Cl2] 1 is achieved. Reactions were performed under mild and neat …

New chiral N-heterocyclic olefin bifunctional organocatalysis in α-functionalization of β-ketoesters

S Wang, C Zhang, D Li, Y Zhou, Z Su, X Feng… - Science China …, 2023 - Springer
N-heterocyclic olefins (NHOs) possess an electron-rich and highly polarized C= C double
bond due to the donating property of nitrogen atoms. This feature imparts exocyclic carbon …