Results 111 to 120 of about 32,282 (298)

Zeolite (ZSM-5) as a Highly Efficient and Heterogeneous Catalyst for the Synthesis of β-Enaminones and β-Enamino Esters

E-Journal of Chemistry, 2011
Several β-enaminones and β-enaminoesters have been synthesized in high yields from amine and β-diketone in the presence of Zeolite (ZSM-5) as a catalyst. This method is applicable to both cyclic and acyclic ketones with aromatic and aliphatic amines.
Amiya Shekhar, Devendra Deo Pathak
doaj   +1 more source

General and Selective Metal-Free Radical α-C-H Borylation of Aliphatic Amines. [PDF]

Chem, 2022
Sarkar S, Wagulde S, Jia X, Gevorgyan V.
europepmc   +1 more source

Cu-catalyzed coupling of aliphatic amines with alkylboronic esters [PDF]

We report a Cu-catalyzed oxidative coupling of aliphatic amines with benzylic and aliphatic boronic esters to give high value alkyl amines, products found widely in applications from medicinal chemistry to materials science.
Dennis, F., Arenas, A.R., Peralta-Arriaga, Samantha L., Peralta-Arriaga, S., Partridge, Benjamin M., Shanmugam, Muralidharan, Romero Arenas, Antonio, Andrews, Jonathan A., Andrews, J., Partridge, B.M., Rodgers, George, Rodgers, G., Dennis, Francesca M., Shanmugam, M.   +13 more
core   +1 more source

An Efficient One Pot Procedure for Preparation of Symmetrical N,N'-Disubstituted Urea from Aromatic and Aliphatic Amines and Urea under Microwave Irradiation [PDF]

Iranian Journal of Chemistry & Chemical Engineering, 2000
A phosgene-free synthesis of symmetrical N,N'-disubstituted urea by the reaction of aromatic and aliphatic primary amines and urea promoted by  microwave irradiation in the presence of a suitable energy-transfer solvent such as N-N-dimethylacetamide is ...
Mohammad S. Khajavi, Mohammad Gl Dakamin, Hassan Hazarkhani, Mostafa Hajihadi, Farzad Nikpour   +4 more
doaj  

Quantum Chemical Analysis of the Corrosion Inhibition Potential by Aliphatic Amines. [PDF]

Materials (Basel), 2021
Malinowski S, Wróbel M, Woszuk A.
europepmc   +1 more source

Solvent-free and eco-friendly green protocol for N-Boc Protection of amines using picric acid as a catalyst

Tetrahedron Green Chem
We have developed an environmentally conscious green protocol to protect amine functional groups in drug discovery and the total synthesis of biologically active natural products.
Ramesha Thongolla, Ummareddy Venkata Subba Reddy, Sailam Sri Gogula, Empati Raja Sekhar, Puchakayala Muralidhar Reddy, Anren Hu   +5 more
doaj   +1 more source

Seasonal variation of aliphatic amines in marine sub-micrometer particles at the Cape Verde islands [PDF]

Atmospheric Chemistry and Physics, 2009
Monomethylamine (MA), dimethylamine (DMA) and diethylamine (DEA) were detected at non-negligible concentrations in sub-micrometer particles at the Cap Verde Atmospheric Observatory (CVAO) located on the island of São Vicente in Cape Verde during algal ...
H. Herrmann, T. Gnauk, S. Lehmann, J. Karstensen, D. van Pinxteren, Y. Iinuma, C. Müller   +6 more
doaj  

Reactions of Quinolizine-and Pyridino[1,2-a]pyrimidine-3-diazonium Tetrafluoroborates with Aliphatic Amines*

, 2004
Reactions of 1-cyano-4-oxo-4H-quinolizine-3-diazonium tetrafluoroborate (1a) and 4-oxo-4H-pyridino[1,2-a]pyrimidine-3-diazonium tetrafluoroborate (1b) with aliphatic amines 2a -g were studied.
Jurij Svete, Branko Stanovnik, Simon Rečnik   +2 more
core  

Preparation and Performance Evaluation of a Self‐Generated Particle Plugging Agent Based on Thermosetting Resin

Asia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT A thermosetting in situ curing resin microsphere system has been developed. It has controllable phase transition time and particle size. This system addresses the current challenges of low strength, shear susceptibility, and short phase transition time in polymer microsphere blockers and thermoplastic particle blockers.
Baolei Jiao, Lifeng Chen, Minghao Xue, Xuemin Yan, Jiamin Zhang, Feifan Liu   +5 more
wiley   +1 more source

Site-selective C–H arylation of primary aliphatic amines enabled by a catalytic transient directing group

, 2017
Transition-metal-catalysed direct C–H bond functionalization of aliphatic amines is of great importance in organic and medicinal chemistry research. Several methods have been developed for the direct sp3 C–H functionalization of secondary and tertiary ...
Yongbing Liu, Haibo Ge, Ge, Haibo, Liu, Yongbing   +3 more
core   +1 more source