Results 31 to 40 of about 62,639 (299)

Alkenylation and Allylation of Aldehydes by Using an Ni/Cr/TDAE Redox System [PDF]

open access: yes, 2001
In 360 females, Bone mineral density (BMD) in lumbar vertebrae (L2-L4) was assessed by quantitative computed tomography (QCT), and the values obtained were compared with the frequency of vertebral transformation or fracture as assessed by lateral scan ...
Goto, Kentaro   +4 more
core   +1 more source

Synthesis, DFT Study and Antibacterial Activity of some Isoxazoline Derivatives Containing 1,4-benzothiazin-3-one Nucleus Obtained Using 1,3-dipolar Cycloaddition Reaction [PDF]

open access: yesIranian Journal of Chemistry & Chemical Engineering, 2020
Novel series of isoxazoline derivatives containing 1,4-benzothiazin-3-one ring (6a-h) were synthesized via 1,3-dipolar cycloaddition reactions of arylnitrile oxides 5a-d on 4-allyl-2-(substituted)-1,4-benzothiazin-3-ones 3 and 4 led to polyheterocyclic ...
Sebbar Nada Kheira   +8 more
doaj   +1 more source

Synthesis and alkyne-coupling chemistry of cyclomanganated 1- and 3-acetylindoles, 3-formylindole and analogues [PDF]

open access: yes, 2006
The syntheses are reported of new cyclomanganated indole derivatives (1-acetyl-κO-indolyl-κC2)dicarbonylbis(trimethylphosphite)manganese (2), (1-methyl-3-acetyl-κO-indolyl-κC2)tetracarbonylmanganese (4), (3-formyl-κO-indolyl-κC2)tetracarbonylmanganese ...
Depree, Gary J.   +4 more
core   +2 more sources

Synthesis of aza-rocaglates via ESIPT-mediated (3+2) photocycloaddition [PDF]

open access: yes, 2016
Synthesis of aza-rocaglates, nitrogen-containing analogues of the rocaglate natural products, is reported. The route features ESIPT-mediated (3+2) photocycloaddition of 1-alkyl-2-aryl-3-hydroxyquinolinones with the dipolarophile methyl cinnamate.
Cencic, Regina   +4 more
core   +1 more source

Catalytic Enantioselective Synthesis of N-C Axially Chiral N-(2,6-Disubstituted-phenyl)sulfonamides through Chiral Pd-Catalyzed N-Allylation

open access: yesMolecules, 2022
Recently, catalytic enantioselective syntheses of N-C axially chiral compounds have been reported by many groups. Most N-C axially chiral compounds prepared through a catalytic asymmetric reaction possess carboxamide or nitrogen-containing aromatic ...
Sota Fukasawa   +7 more
doaj   +1 more source

Asymmetric preparation of antifungal 1-(4 -chlorophenyl)-1-cyclopropyl methanol and 1-(4 -chlorophenyl)-2-phenylethanol. Study of the detoxification mechanism by Botrytis cinerea [PDF]

open access: yes, 2011
Chiral alcohols are important as bioactive compounds or as precursors to such molecules. On the basis of the different antifungal properties of the enantiopure alcohol derivatives of 4-chlorophenyl cyclopropyl ketone and benzyl 4-chlorophenyl ketone ...
Aleu Casatejada, Josefina   +4 more
core   +2 more sources

Molecular Docking Study of Substituted Benzamide Derivatives as Analgesic Candidates

open access: yesBorneo Journal of Pharmacy
Thiourea derivatives represent a diverse class of compounds exhibiting a range of pharmacological activities, including antitubercular, analgesic, antiviral, and anticancer effects.
Rahmawati Rahmawati   +2 more
doaj   +1 more source

Kinetic Study of Reaction between Allyl Compounds of Mg and Ethylene: Computational Investigation [PDF]

open access: yesIranian Journal of Chemistry & Chemical Engineering, 2017
The reactions of propenyl magnesium halides with ethylene were studied using ab initio calculations. The structure of the transition state and the ground state were evaluated and obtained the structural properties, theoretical thermodynamic and kinetic ...
Elahe Rajaeian, Avat (Arman) Taherpour
doaj  

Black Garlic and Its Bioactive Compounds on Human Health Diseases: A Review

open access: yesMolecules, 2021
Black garlic (BG) is a form of aged garlic obtained from raw garlic (Allium sativum) via Millard reaction under high temperature (60–90 °C) and humidity (70–90%) for a period of time. Several studies reported higher contents of water-soluble antioxidants
Tanvir Ahmed, Chin-Kun Wang
doaj   +1 more source

Scientific Opinion on the safety and efficacy of aliphatic and aromatic mono- and di-thiols and mono-, di-, tri-, and polysulphides with or without additional oxygenated functional groups (chemical group 20) when used as flavourings for all animal species [PDF]

open access: yesEFSA Journal, 2013
Chemical group 20 consists of aliphatic and aromatic mono- and di-thiols and mono-, di-, tri-, and polysulphides with or without additional oxygenated functional groups, of which 31 are currently authorised for use as flavours in food.
EFSA Panel on Additives and Products or Substances used in Animal Feed (FEEDAP)
doaj   +1 more source

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