Results 1 to 10 of about 173,620 (335)

Direct synthesis of N-trifluoromethyl amides via photocatalytic trifluoromethylamidation [PDF]

Nature Communications
N-CF3 amides are promising targets for pharmaceutical and agrochemistry. Unfortunately, there is a defluorination problem of N-CF3 amine starting materials when using common amide bond formation method.
Ru Zhong Zhang, Yang Liu, Cong Xu, Mang Wang   +3 more
doaj   +4 more sources

Selective C-N σ Bond Cleavage in Azetidinyl Amides under Transition Metal-Free Conditions [PDF]

Molecules, 2019
Functionalization of amide bond via the cleavage of a non-carbonyl, C-N σ bond remains under-investigated. In this work, a transition-metal-free single-electron transfer reaction has been developed for the C-N σ bond cleavage of N ...
Hengzhao Li, Zemin Lai, Adila Adijiang, Hongye Zhao, Jie An   +4 more
doaj   +2 more sources

Macrocyclic Aromatic Oligoamides with Diphenyladamantane Units: Conformational Change from Folded to Open by N-Alkyl Removal [PDF]

Molecules
Macrocyclic aromatic amide oligomers of various sizes containing tertiary amides and diphenyladamantane moieties were synthesized by condensation reactions using PhP3Cl2 or LiHMDS.
Sae Maeda, Ryota Usami, Kei Takamatsu, Moemi Takato, Shoko Kikkawa, Hidemasa Hikawa, Isao Azumaya   +6 more
doaj   +2 more sources

Thermochemical properties and regularities of amides, anilides, and amidic acids

Acta Chimica Slovenica, 2018
The thermodynamic properties of carbamide and its alkyl substituted were studied insufficiently. In this article, the enthalpies of combustion of ΔсН of some amides, anilides and amidic acids have been determined experimentally; their standard enthalpies
Alma Kairlapovna Ryskaliyeva, Murat Ergalievich Baltabayev, Aigul Moldakhmetovna Zhubatova   +2 more
doaj   +4 more sources

NiH-catalyzed asymmetric hydroalkynylation of α,β-unsaturated amides

Green Synthesis and Catalysis, 2022
An enantioselective NiH-catalyzed hydroalkynylation of α,β-unsaturated amides is reported. A wide range of α,β-unsaturated amides and bromoalkynes are suitable substrates for this reaction, which proceeds under mild conditions, allowing access to a ...
Yuanzheng Cheng, Zhuofan Gui, Ran Tao, You Wang, Shaolin Zhu   +4 more
doaj   +1 more source

Progress in Catalytic Asymmetric Reactions with 7-Azaindoline as the Directing Group

Molecules, 2023
α-Substituted-7-azaindoline amides and α,β-unsaturated 7-azaindoline amides have emerged as new versatile synthons for various metal-catalyzed and organic-catalyzed asymmetric reactions, which have attracted much attention from chemists.
Yan-Ping Zhang, Yong You, Jun-Qing Yin, Zhen-Hua Wang, Jian-Qiang Zhao, Wei-Cheng Yuan   +5 more
doaj   +1 more source

An amide cyclophane [PDF]

Acta Crystallographica Section E Structure Reports Online, 2014
The title compound, 8,18-dithia-2,6-diaza-13(1,4)-piperidina-1(1,2),4(1,3),7(1,2)-tribenzenaoctadecaphane-10,15-diyne-3,6-dione, C32H30N4O2S2, is composed of a relatively planar bis(2-mercaptophenyl)isophthalamide unit linked to a bridging 1,4-di(but-2-yn-1-yl)piperazine unit, forming a macrocycle.
Vijayan Viswanathan, Ayyavu Thirunarayanan, Perumal Rajakumar, Devadasan Velmurugan   +3 more
openaire   +3 more sources

Detection of atmospheric gaseous amines and amides by a high-resolution time-of-flight chemical ionization mass spectrometer with protonated ethanol reagent ions [PDF]

Atmospheric Chemistry and Physics, 2016
Amines and amides are important atmospheric organic-nitrogen compounds but high time resolution, highly sensitive, and simultaneous ambient measurements of these species are rather sparse.
L. Yao, M.-Y. Wang, M.-Y. Wang, X.-K. Wang, Y.-J. Liu, Y.-J. Liu, H.-F. Chen, J. Zheng, W. Nie, W. Nie, A.-J. Ding, A.-J. Ding, F.-H. Geng, D.-F. Wang, J.-M. Chen, D. R. Worsnop, L. Wang, L. Wang   +17 more
doaj   +1 more source

Multi-environment evaluations across ecological regions reveal climate and soil effects on amides contents in Chinese prickly ash peels (Zanthoxylum bungeanum Maxim.)

BMC Plant Biology, 2023
Background Environmental factors difference is the key factor for the difference in the production, transformation and accumulation of effective components in plants.
Tao Zheng, Hai-tao Zeng, Bing-yin Sun, Shu-ming Liu   +3 more
doaj   +1 more source

Amide Moieties Modulate the Antimicrobial Activities of Conjugated Oligoelectrolytes against Gram‐negative Bacteria

ChemistryOpen, 2022
Cationic conjugated oligoelectrolytes (COEs) are a class of compounds that can be tailored to achieve relevant in vitro antimicrobial properties with relatively low cytotoxicity against mammalian cells.
Jakkarin Limwongyut, Dr. Alex S. Moreland, Dr. Chenyao Nie, Prof. Javier Read de Alaniz, Prof. Guillermo C. Bazan   +4 more
doaj   +1 more source