Results 1 to 10 of about 32,282 (298)

Platinum nanoparticles as recyclable heterogeneous catalyst for selective methylation of amines and imines with formic acid: Indirect utilization of CO2

Journal of Saudi Chemical Society, 2022
N-methylation of amines and imines with formic acid as C1 source by easily prepared Pt NPs as heterogeneous catalyst is reported here. Primary, secondary amines and imines were successfully methylated in good to excellent yields under mild conditions ...
Weishuang Li, Feng Yan, Shuang Cai, Liang Ding, Bojie Li, Bingqing Zhang, Yaoyao Zhang, Lei Zhu   +7 more
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Quantitative risk analysis and control measure evaluation for workplace exposure to aliphatic amines: A case study in the foundry sector [PDF]

International Archives of Health Sciences
Objectives: This study aims to conduct a quantitative risk analysis and evaluate control measures for workplace exposure to aliphatic amines, focusing on a case study in the foundry sector.Methods: The study comprised four main phases: risk analysis ...
Sajjad Mozaffari, Firouz Valipour, Zeinab Hasani Jalilian, Alireza Yavar   +3 more
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Imidazolium Chloride: An Efficient Catalyst for Transamidation of Primary Amines

Molecules, 2018
A highly efficient and convenient protocol of imidazolium chloride (30 mol %) catalyzed amidation of amines with moderate to excellent yields was reported. The protocol shows broad substrate scope for aromatic, aliphatic, and heterocyclic primary amines.
Qingqiang Tian, Zongjie Gan, Xuetong Wang, Dan Li, Wen Luo, Huajun Wang, Zeshu Dai, Jianyong Yuan   +7 more
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Novel method for the synthesis of Sulfonamide Urea’s from p-toluene sulfonyl isocyanate using Amberlite IRA-400 Cl resin: Application towards the synthesis of Gliclazide

Results in Chemistry, 2021
Novel and facile method for the synthesis of sulfonyl urea’s from p-toluene sulfonyl isocyanates with different amines using Amberlite IRA-400 Cl resin in NMP was reported.
Ravi Kumar Sadineni, Rajesh Kumar Rapolu, V.V.N.K.V. Prasada Raju, Srinivasu Navuluri, Sireesha Malladi, Naveen Mulakayala   +5 more
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Polymeric Networks Containing Amine Derivatives as Organocatalysts for Knoevenagel Reaction within Continuously Driven Microfluidic Reactors

Gels, 2023
The Knoevenagel reaction is a classic reaction in organic chemistry for the formation of C-C bonds. In this study, various catalytic monomers for Knoevenagel reactions were synthesized and polymerized via photolithography to form polymeric gel dots with ...
Naresh Killi, Julian Bartenbach, Dirk Kuckling   +2 more
doaj   +1 more source

Effect of Aliphatic Chain Length of Bio-based Amines on The Molecular Structure, Curing Mechanism, and Rheological Properties of Cardanol-based Polybenzoxazine [PDF]

E3S Web of Conferences
The use of agricultural products and their waste as raw materials for the synthesis of polybenzoxazine is a highly strategic initiative to address environmental sustainability issues and the limited availability of petroleum resources. The implementation
Harsanti Dini, Syahrial Anne Zulfia, Thaha Yudi Nugraha   +2 more
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An efficient synthesis of N-substituted pyrroles catalyzed by MgI2 etherate

Main Group Metal Chemistry, 2014
We describe a convenient and useful procedure for the synthesis of various 2,5-dimethyl-N-substituted pyrrole derivatives by the addition of 2,5-hexadione with aromatic amines, heteroaromatic amines and aliphatic amines catalyzed by MgI2 etherate (MgI2 ...
Zhang Yongdong, Weng Guodong, Chen Jingyan, Ma Danting, Zhang Xingxian   +4 more
doaj   +1 more source

Manganese-mediated reductive functionalization of activated aliphatic acids and primary amines

Nature Communications, 2020
Alkyl carboxylic acids and primary amines are ubiquitous and useful for synthesis of new compounds. Here, the authors report a manganese-mediated reductive decarboxylative/deaminative functionalization of activated aliphatic acids and primary amines for ...
Zhan Li, Ke-Feng Wang, Xin Zhao, Huihui Ti, Xu-Ge Liu, Honggen Wang   +5 more
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Dual photoredox and cobalt catalysis enpowers site-selective allylic amination

Green Synthesis and Catalysis, 2022
The development of a highly efficient, selective and atom-economical method for the construction of allylic amines are a challenge in green synthetic chemistry.
Guoqing Li, Jiarong Chen
doaj   +1 more source

Preparation and in situ use of unstable N-alkyl α-diazo-γ-butyrolactams in RhII-catalyzed X–H insertion reactions

Beilstein Journal of Organic Chemistry, 2020
N-Alkyl α-diazo-γ-butyrolactams, previously found to be unstable and to undergo unproductive dimerization to bishydrazones, were successfully converted immediately to various X–H insertion products with alcohols, aromatic amines and thiols via an in situ
Maria Eremeyeva, Daniil Zhukovsky, Dmitry Dar’in, Mikhail Krasavin   +3 more
doaj   +1 more source