Borrowing Hydrogen and Acceptorless Dehydrogenative Coupling in the Multicomponent Synthesis of N‐Heterocycles: A Comparison between Base and Noble Metal …

N Hofmann, KC Hultzsch - European Journal of Organic …, 2021 - Wiley Online Library
Acceptorless dehydrogenative coupling reactions (ADC) and hydrogen transfer strategies
(HT) provide a powerful tool in the multicomponent formation of N‐heterocycles. A broad …

Control of Absolute Stereochemistry in Transition‐Metal‐Catalysed Hydrogen‐Borrowing Reactions

T Kwok, O Hoff, RJ Armstrong… - Chemistry–A European …, 2020 - Wiley Online Library
Hydrogen‐borrowing catalysis represents a powerful method for the alkylation of amine or
enolate nucleophiles with non‐activated alcohols. This approach relies upon a catalyst that …

C‐Alkylation of Secondary Alcohols by Primary Alcohols through Manganese‐Catalyzed Double Hydrogen Autotransfer

O El‐Sepelgy, E Matador, A Brzozowska… - …, 2019 - Wiley Online Library
A new Mn‐catalyzed alkylation of secondary alcohols with non‐activated alcohols is
presented. The use of a stable and well‐defined manganese pincer complex, stabilized by a …

Air stable iron (II) PNP pincer complexes as efficient catalysts for the selective alkylation of amines with alcohols

M Mastalir, B Stöger, E Pittenauer… - Advanced Synthesis …, 2016 - Wiley Online Library
A series of well‐defined iron (II) complexes of the types [Fe (PNP) Br2] and [Fe (PNP)(CO)
Br2] with PNP pincer ligands based on triazine and pyridine backbones were prepared and …

Transition‐Metal‐Free Hydrogen Autotransfer: Diastereoselective N‐Alkylation of Amines with Racemic Alcohols

M Xiao, X Yue, R Xu, W Tang, D Xue, C Li… - Angewandte …, 2019 - Wiley Online Library
A practical method for the synthesis of α‐chiral amines by alkylation of amines with alcohols
in the absence of any transition‐metal catalysts has been developed. Under the co‐catalysis …

Manganese‐Catalyzed Multicomponent Synthesis of Pyrroles through Acceptorless Dehydrogenation Hydrogen Autotransfer Catalysis: Experiment and Computation

JC Borghs, LM Azofra, T Biberger… - …, 2019 - Wiley Online Library
A new base metal catalyzed sustainable multicomponent synthesis of pyrroles from readily
available substrates is reported. The developed protocol utilizes an air‐and moisture‐stable …

Catalytic asymmetric synthesis of cyclohexanes by hydrogen borrowing annulations

RJ Armstrong, WM Akhtar, TA Young… - Angewandte Chemie …, 2019 - Wiley Online Library
Hydrogen borrowing catalysis serves as a powerful alternative to enolate alkylation,
enabling the direct coupling of ketones with unactivated alcohols. However, to date …

Atmosphere‐Controlled Chemoselectivity: Rhodium‐Catalyzed Alkylation and Olefination of Alkylnitriles with Alcohols

J Li, Y Liu, W Tang, D Xue, C Li, J Xiao… - … –A European Journal, 2017 - Wiley Online Library
The chemoselective alkylation and olefination of alkylnitriles with alcohols have been
developed by simply controlling the reaction atmosphere. A binuclear rhodium complex …

Ni‐catalyzed α‐alkylation of Unactivated Amides and Esters with Alcohols by Hydrogen Auto‐transfer Strategy

SP Midya, J Rana, J Pitchaimani… - …, 2018 - Wiley Online Library
A transition‐metal‐catalyzed borrowing hydrogen/hydrogen auto‐transfer strategy allows
the utilization of feedstock alcohols as an alkylating partner, which avoids the formation of …

A Convenient Ruthenium‐Catalysed α‐Methylation of Carbonyl Compounds using Methanol

TT Dang, AM Seayad - Advanced Synthesis & Catalysis, 2016 - Wiley Online Library
An efficient ruthenium catalyst is reported, for the first time, to catalyse the α‐methylation of
ketones and esters using methanol as a green methylating agent. The in situ generated …