Results 51 to 60 of about 4,664 (217)

Highly efficient oxidation of amines to aldehydes via flow-based biocatalysis [PDF]

open access: yes, 2017
A new mild and efficient process for the preparation of aldehydes in water employed as flavour and fragrance components in food, beverage, cosmetics, as well as in pharmaceuticals was developed using a continuous-flow approach based on an immobilized ...
Akhtar   +51 more
core   +2 more sources

Diversity-oriented synthesis of dihydrobenzoxazepinones by coupling the Ugi multicomponent reaction with a Mitsunobu cyclization

open access: yesBeilstein Journal of Organic Chemistry, 2014
An operationally simple protocol for the synthesis of 2,3-dihydrobenzo[f][1,4]oxazepin-3-ones, based on an Ugi reaction of an ortho-(benzyloxy)benzylamine, glycolic acid, an isocyanide and an aldehyde, followed by an intramolecular Mitsunobu substitution
Lisa Moni   +4 more
doaj   +1 more source

Transition metal-mediated synthesis of oxazoles [PDF]

open access: yes, 2014
Among the synthetic methods for the formation of the oxazole ring, transition metal-mediated protocols are the most attractive in terms of selectivity, efficiency and mildness of reaction conditions.
Bresciani, Stefano   +1 more
core   +1 more source

Modeling complex metabolic reactions, ecological systems, and financial and legal networks with MIANN models based on Markov-Wiener node descriptors [PDF]

open access: yes, 2013
[Abstract] The use of numerical parameters in Complex Network analysis is expanding to new fields of application. At a molecular level, we can use them to describe the molecular structure of chemical entities, protein interactions, or metabolic networks.
Agrawal V. K.   +144 more
core   +2 more sources

Electrosynthesis of Bioactive Chemicals, From Ions to Pharmaceuticals

open access: yesAdvanced Functional Materials, EarlyView.
This review discusses recent advances in electrosynthesis for biomedical and pharmaceutical applications. It covers key electrochemical materials enabling precise delivery of ions and small molecules for cellular modulation and disease treatment, alongside catalytic systems for pharmaceutical synthesis.
Gwangbin Lee   +4 more
wiley   +1 more source

Novel and efficient oxidation of benzyl ethers to benzaldehydes by DMSO​/49​% aqueous HB [PDF]

open access: yes, 2007
Dimethylsulfoxide (DMSO) oxidizes benzyl ethers into corresponding benzaldehydes at 110°; the reaction is accelerated by 49​% aq. HBr. The conditions work well for different aryl-​substituted benzyl ethers.
Pasha, M.A., Ramesh Naik, .
core   +1 more source

Microdroplet Stabilization Enabled Direct Mass Spectrometric Identification of Electrogenerated Transient Carbocation Intermediates

open access: yesAdvanced Science, EarlyView.
The in situ mass spectrometric identification of the electrogenerated benzylic and phenylic carbocations, whose half‐lives in bulk solutions are on the nanosecond scale, is achieved by taking advantage of the unique stabilization effect of the electrosprayed microdroplets.
Guo‐Shan Zhu, Ren‐Jie Hui, Jun Hu
wiley   +1 more source

Palladium and Platinum 2,4-cis-amino Azetidine and Related Complexes [PDF]

open access: yes, 2018
Seven N,N’-palladium(II) chloride complexes, one N,N’-palladium(II) acetate complex of 2,4-cis-azetidines where prepared and analyzed by single crystal XRD.
Binder   +35 more
core   +5 more sources

A Generalized Approach for Distal C–H Arylation of Organic Building Blocks: Unveiling the Role of Counter Anion

open access: yesAdvanced Science, EarlyView.
We report a general strategy for meta‐selective C–H arylation using aryl iodides and a Pd(II)/Pd(IV) catalytic system guided by a removable directing group. DFT and experimental studies reveal that counter anion tuning (acetate to trifluoroacetate) significantly enhances selectivity.
Jagrit Grover   +6 more
wiley   +1 more source

Synthesis and Antifungal Studies of (2E)-N-Benzyl-N′-phenylbut-2-enediamide and (2E)-N,N′-Dibenzylbut-2-enediamide Analogues

open access: yesJournal of Chemistry, 2013
A series of eleven butanediamine analogues, of which nine were new, were synthesized by the nucleophilic substitution of aromatic amines and benzylamines with maleic anhydride and tested on four yeast strains of Candida species using the broth ...
Habila J. Dama   +3 more
doaj   +1 more source

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