Results 121 to 130 of about 922,646 (221)

Methylene Insertion into Nitrogen‐Heteroatom Single Bonds of 1,2‐Azoles via a Zinc Carbenoid: An Alternative Tool for Skeletal Editing

Advanced Science
The nitrogen‐heteroatom single bonds of 1,2‐azoles and isoxazolines underwent methylene insertion in the presence of CH2I2 (6 equiv.) and diethylzinc (3 equiv.) to produce a wide variety of the ring‐expanded six‐membered heterocycles.
Masato Tsuda, Taiki Morita, Yuto Morita, Jun Takaya, Hiroyuki Nakamura   +4 more
doaj   +1 more source

Polar Heterobenzylic C(sp³)-H Chlorination Pathway Enabling Efficient Diversification of Aromatic Nitrogen Heterocycles. [PDF]

J Am Chem Soc, 2023
Maity S, Lopez MA, Bates DM, Lin S, Krska SW, Stahl SS.   +5 more
europepmc   +1 more source

Decoration of A-Ring of a Lupane-Type Triterpenoid with Different Oxygen and Nitrogen Heterocycles. [PDF]

Molecules, 2022
Sousa JLC, Albuquerque HMT, Silvestre AJD, Silva AMS.   +3 more
europepmc   +1 more source

Structural diversity using amino acid "Customizable Units": conversion of hydroxyproline (Hyp) into nitrogen heterocycles. [PDF]

Amino Acids, 2022
Hernández D, Porras M, Boto A.
europepmc   +1 more source

Bridgehead Nitrogen Heterocycles : Synthesis and Biological Activities of s-Triazolo[3,4-b] [1,3,4]thiadiazole System

, 1996
Department of Chemistry, University of Jammu, Jammu-180 004 Manuscript received 27 September 1994, revived 10 March 1995, accepted 15 March 1995 Bridgehead Nitrogen Heterocycles : Synthesis and Biological Activities of s-Triazolo[3,4-b] [1,3,4 ...
SANGEETA SUDAN, P. L. KACHROO, RAJIVE GUPTA   +2 more
core   +1 more source

Polycyclic nitrogen heterocycles as potential thymidine phosphorylase inhibitors: synthesis, biological evaluation, and molecular docking study. [PDF]

J Enzyme Inhib Med Chem, 2022
Aknin K, Bontemps A, Farce A, Merlet E, Belmont P, Helissey P, Chavatte P, Sari MA, Giorgi-Renault S, Desbène-Finck S.   +9 more
europepmc   +1 more source

Copper catalyzed late-stage C(sp³)-H functionalization of nitrogen heterocycles. [PDF]

Nat Commun, 2021
Chang Z, Huang J, Wang S, Chen G, Zhao H, Wang R, Zhao D.   +6 more
europepmc   +1 more source

Six-membered nitrogen heterocycles - aromaticity and electron delocalization

, 2005
All six membered nitrogen heterocycles are generally considered as delocalized systems with high extent of aromaticity. However, in our investigations we observed that the heterocycles bearing the azine grouping C=N-N=C (1,2,4-triazines and ...
Ludvík, Jiří
core  

QSAR and Pharmacophore Modeling of Nitrogen Heterocycles as Potent Human N-Myristoyltransferase (Hs-NMT) Inhibitors. [PDF]

Molecules, 2021
Zaki MEA, Al-Hussain SA, Masand VH, Akasapu S, Lewaa I.   +4 more
europepmc   +1 more source

Silver Benzoate Facilitates the Copper-Catalyzed C-N Coupling of Iodoazoles with Aromatic Nitrogen Heterocycles. [PDF]

ACS Omega, 2021
Lozano C, Ramirez C, Sin N, Viart HM, Prusiner SB, Paras NA, Conrad J.   +6 more
europepmc   +1 more source