Results 1 to 10 of about 47,943 (325)

Davis-Beirut reaction: route to thiazolo-, thiazino-, and thiazepino-2H-indazoles. [PDF]

open access: yes, 2014
Methods for the construction of thiazolo-, thiazino-, and thiazepino-2H-indazoles from o-nitrobenzaldehydes or o-nitrobenzyl bromides and S-trityl-protected 1°-aminothioalkanes are reported.
Farber, Kelli M   +2 more
core   +9 more sources

Comparison of Derivatization Methods for Groomed Latent Print Residues Analysis via Gas Chromatography

open access: yesForensic Sciences, 2023
The practice of latent print analysis is comprised of a visual examination and the comparison of the fingerprint pattern from a questioned print to an exemplar(s).
Jessica Kindell, Candice Bridge
doaj   +1 more source

Synthesis of 1,6-bis(semicarbazide)hexanes and 1,6-bis(1,2,4-triazol-5-one)hexanes and their antiproliferative and antimicrobial activity [PDF]

open access: yesJournal of the Serbian Chemical Society, 2012
A series of 1,6-bis(3-substituted-4,5-dihydro-1H-1,2,4-triazol-5-on-4- yl)hexanes (3a-g) were synthesized by the cyclization reaction of 1,6-bis(1- substituted-semicarbazide-4-yl)hexanes (2a-g) in alkaline medium.
Pitucha M.   +3 more
doaj   +1 more source

Determination of Organosulfides from Onion Oil

open access: yesFoods, 2020
Qualitative and semi-quantitative analysis of organosulfides extracted from oil obtained by steam distillation of yellow onions was performed by gas chromatography-mass spectrometry (GC-MS).
Maranda S. Cantrell   +3 more
doaj   +1 more source

Base-Promoted Intramolecular Addition of Vinyl Cyclopropanecarboxamides to Access Conformationally Restricted Aza[3.1.0]bicycles

open access: yesMolecules, 2023
3-Azabicyclo[3.1.0]hexanes are common structural components in natural products and bioactive compounds. Traditionally, the metal-mediated cyclopropanation domino reaction of chain enzymes is the most commonly used strategy for the construction of this ...
Jingya Li   +5 more
doaj   +1 more source

Trimethyl 4,4′,4′′-(ethene-1,1,2-triyl)tribenzoate

open access: yesIUCrData, 2020
The title compound, C26H22O6, is formed as the major product from the reaction between syn-1,2-bis(pinacolatoboron)-1,2-bis(4-methylcarboxyphenyl)ethene and excess methyl 4-iodobenzoate in basic DMSO using a palladium catalyst at 80°C via Suzuki coupling
Melvin J. G. Lesley   +3 more
doaj   +1 more source

Antioxidant, Pancreatic Lipase Inhibitory, and Tyrosinase Inhibitory Activities of Extracts of the Invasive Plant Spartina anglica (Cord-Grass)

open access: yesAntioxidants, 2021
Since 2016, the invasive halophyte Spartina anglica has been colonizing mudflats along the western coast of South Korea. In order to minimize costs on S.
Geum Jin Kim   +7 more
doaj   +1 more source

Selective and reversible 1,3-dipolar cycloaddition of 6-aryl-1,5-diazabicyclo[3.1.0]hexanes with 1,3-diphenylprop-2-en-1-ones under microwave irradiation

open access: yesBeilstein Journal of Organic Chemistry, 2020
The first example of the cycloaddition of in situ-generated azomethine imine under microwave conditions is described. The reaction of 6-aryl-1,5-diazabicyclo[3.1.0]hexanes with 1,3-diphenylprop-2-en-1-ones proceeds regio- and stereoselectively giving ...
Alexander P. Molchanov   +3 more
doaj   +1 more source

Crystal structure of N-butyl-2,3-bis(dicyclohexylamino)cyclopropeniminium chloride benzene monosolvate

open access: yesActa Crystallographica Section E: Crystallographic Communications, 2022
N-Butyl-2,3-bis(dicyclohexylamino)cyclopropenimine (1) crystallizes from benzene and hexanes in the presence of HCl as a monobenzene solvate of the hydrochloride salt, [1H]Cl·C6H6 or C31H54N3+·Cl−·C6H6, in the P21/n space group.
Gaby M. Muñoz Sánchez   +1 more
doaj   +1 more source

Fragment Coupling and the Construction of Quaternary Carbons Using Tertiary Radicals Generated From tert-Alkyl N-Phthalimidoyl Oxalates By Visible-Light Photocatalysis. [PDF]

open access: yes, 2015
The coupling of tertiary carbon radicals with alkene acceptors is an underdeveloped strategy for uniting complex carbon fragments and forming new quaternary carbons.
Lackner, Gregory L   +3 more
core   +3 more sources

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