Results 101 to 110 of about 14,155 (281)

Catalyst-Free Transamidation of Aromatic Amines with Formamide Derivatives and Tertiary Amides with Aliphatic Amines

, 2018
A simple catalyst- and promoter-free protocol has been developed for the transamidation of weakly nucleophilic aromatic amines with formamide derivatives and low-reactivity tertiary amides with aliphatic amines.
Jingyu Zhang (256203), Hang Gong (4258147), Guo-Jun Deng (1427659), Jiawen Yin (6158066), Changqun Cai (526296)   +4 more
core   +1 more source

Synthesis of 6- or 8-Carboxamido Derivatives of Imidazo[1,2-a]pyridines via a Heterogeneous Catalytic Aminocarbonylation Reaction

Molecules
Imidazo[1,2-a]pyridines and especially their amide derivatives exhibit a wide range of favourable pharmacological properties. In this work, Pd-catalysed carbonylation was used for the first time for the introduction of the carboxamide moiety into ...
Enikő Nagy, Attila Máriás, Margit Kovács, Rita Skoda-Földes   +3 more
doaj   +1 more source

Condensation of Bromal Hydrate with Aliphatic Amides.

, 1933
Condensation of Bromal Hydrate with Aliphatic Amides.
openaire   +2 more sources

Palladium-Catalyzed Direct Arylation of C(sp³)–H Bonds of α‑Cyano Aliphatic Amides

, 2015
Pd­(OAc)2-catalyzed arylation of C­(sp3)–H bonds in α-cyano-α-methyl aliphatic amides is achieved in the presence of 8-aminoquinoline, as a removable directing group, using Mn­(OAc)2 and Na2CO3.
M. Damoder Reddy (1478839), E. Blake Watkins (1478842)   +1 more
core   +1 more source

Unified metal-free intermolecular Heck-type sulfonylation, cyanation, amination, amidation of alkenes by thianthrenation

Nature Communications
Direct and site-selective C-H functionalization of alkenes under environmentally benign conditions represents a useful and attractive yet challenging transformation to access value-added molecules.
Ming-Shang Liu, Hai-Wu Du, Huan Meng, Ying Xie, Wei Shu   +4 more
doaj   +1 more source

Novel 6- and 7-Substituted Coumarins with Inhibitory Action against Lipoxygenase and Tumor-Associated Carbonic Anhydrase IX

Molecules, 2018
A series of carboxamide derivatives of 6- and 7-substituted coumarins have been prepared by an original procedure starting from the corresponding 6- or 7-hydroxycoumarins which were alkylated with ethyl iodoacetate, and the obtained ester was converted ...
Aikaterini Peperidou, Silvia Bua, Murat Bozdag, Dimitra Hadjipavlou-Litina, Claudiu T. Supuran   +4 more
doaj   +1 more source

Copper Salts/TBAB-Catalyzed Chemo- and Regioselective β‑C(sp³)–H Acyloxylation of Aliphatic Amides

, 2019
An efficient Cu­(II)-catalyzed and tetrabutylammonium bromide (TBAB)-promoted strategy for highly regioselective and chemoselective C­(sp3)–H acyloxylation of aliphatic amides is described.
Xiaoyue Li (1886605), Wu Zhang (220174), Shuangliu Zhou (1523041), Feifan Wang (1525195), Zhongyu Li (85501)   +4 more
core   +1 more source

Late‐Stage Functionalization of Peptides on the Solid Phase

Angewandte Chemie International Edition, EarlyView.
Peptide modifications are essential to control pharmacodynamic and pharmacokinetic properties of peptide drugs. Consequently, strategies that allow for efficient and rapid incorporation of non‐canonical modifications into peptides in parallel formats are highly sought after.
Marius Werner, Truc Lam Pham, Franziska Thomas   +2 more
wiley   +1 more source

Direct Syntheses of Amides From Long-Chained Aliphatic Amines

, 1940
An examination has been made of direct procedures for the synthesis of amides. Dodecylamine, tetradecylamine, hexadecylamine and octadecylamine have been treated with a variety of aliphatic and aromatic acids.
Harber, William I., Gilman, H., Hunter, Byron A.   +2 more
core  

Scandium triflate catalyzed ester synthesis using primary amides

, 2014
A scandium triflate (ScOTf)3 catalyzed methodology has been developed to synthesize esters from primary amides. Various primary and secondary aliphatic alcohols have been shown to react in n-heptane with a range of primary amides for ...
Williams, Jonathan M.J., Atkinson, Benjamin N.   +1 more
core   +1 more source