Increasing the reactivity of amides towards organometallic reagents: an overview

V Pace, W Holzer, B Olofsson - Advanced Synthesis & Catalysis, 2014 - Wiley Online Library
The nucleophilic addition of carbon nucleophiles to amides has traditionally been a difficult
task, both due to reactivity and selectivity problems. When successful, these processes …

Recent advances in chromium-catalyzed organic transformations

X Zeng - Synlett, 2020 - thieme-connect.com
The use of simple and low-cost chromium chloride salts as catalysts or precatalysts for the
development of cost-effective methods is of significant synthetic and mechanistic interest …

Photoredox‐Catalyzed [3+ 2] annulation of Aromatic Amides with Olefins via Iminium Intermediates

Z Tang, Z Yao, Y Yu, J Huang, X Ma, X Zhao… - Angewandte …, 2024 - Wiley Online Library
Despite the preliminary success of transition metal‐catalyzed [3+ 2] annulation of amides
with olefins, the corresponding radical‐type [3+ 2] annulation remains a laborious challenge …

Metal-free C–H alkyliminylation and acylation of alkenes with secondary amides

PQ Huang, YH Huang, H Geng, JL Ye - Scientific Reports, 2016 - nature.com
Carbon–carbon bond formation by metal-free cross-coupling of two reactants with low
reactivity represents a challenge in organic synthesis. Secondary amides and alkenes are …

Kumada arylation of secondary amides enabled by chromium catalysis for unsymmetric ketone synthesis under mild conditions

C Chen, P Liu, M Luo, X Zeng - ACS Catalysis, 2018 - ACS Publications
The synthesis of aromatic ketones by chromium-catalyzed Kumada arylation of secondary
amides with organomagnesium reagents is described. This reaction was enabled by using …

General One‐Pot Reductive gem‐Bis‐Alkylation of Tertiary Lactams/Amides: Rapid Construction of 1‐Azaspirocycles and Formal Total Synthesis of (±) …

KJ Xiao, JM Luo, XE Xia, Y Wang… - Chemistry–A European …, 2013 - Wiley Online Library
Amides are a class of highly stable and readily available compounds. The amide functional
group constitutes a class of powerful directing/activating and protecting group for C C bond …

Tf2O/TTBP (2,4,6-Tri-tert-butylpyrimidine): An Alternative Amide Activation System for the Direct Transformations of Both Tertiary and Secondary Amides

Q He, JL Ye, FF Xu, H Geng, TT Chen… - The Journal of …, 2021 - ACS Publications
Ten types of Tf2O/TTBP-mediated amide transformation reactions were investigated. The
results showed that compared with pyridine derivatives 2, 6-di-tert-butyl-4-methylpyridine …

A general method for the one-pot reductive functionalization of secondary amides

PQ Huang, YH Huang, KJ Xiao, Y Wang… - The Journal of Organic …, 2015 - ACS Publications
A one-pot reaction for the transformation of common secondary amides into amines with C–
C bond formation is described. This method consists of in situ amide activation with Tf2O …

Mild metal-free hydrosilylation of secondary amides to amines

PQ Huang, QW Lang, YR Wang - The Journal of Organic …, 2016 - ACS Publications
The combination of amide activation by Tf2O with B (C6F5) 3-catalyzed hydrosilylation with
TMDS constitutes a method for the one-pot reduction of secondary amides to amines under …

Evans' Chiral Auxiliary‐Based Asymmetric Synthetic Methodology and Its Modern Extensions

LY Chen, PQ Huang - European Journal of Organic Chemistry, 2024 - Wiley Online Library
Although the asymmetric catalysis has made a spurt of progress, the use of chiral auxiliaries
remains crucial in asymmetric synthesis due to both the reliability and versatility of the …