Results 61 to 70 of about 679,253 (302)

Triazole-Directed Pd-Catalyzed C(sp2)–H Oxygenation of Arenes and Alkenes [PDF]

open access: yes, 2016
Selective Pd-catalyzed C(sp2)–H oxygenation of 4-substituted 1,2,3-triazoles is described. Unlike previous metal-catalyzed C–H functionalization events, which preferentially occur at the activated heterocyclic C–H bond, the regioselective oxygenation of ...
Aizpurua Iparraguirre, Jesús María   +2 more
core   +2 more sources

Criterion‐Related Validity of the Neuropsychological Quick Assessment for Screening Cognitive, Motor, and Behavioral Impairments in Patients With Pediatric Brain Tumors: An Observational Pilot Study

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Neuropsychological complications may impair the qualitative prognosis of patients with pediatric brain tumors. However, multifaceted evaluations cannot be conducted in all patients because they are time consuming and burdensome for patients.
Ami Tabata   +9 more
wiley   +1 more source

Synthesis of Cyclic Sulfilimines and Sulfoximines via Copper‐Mediated C(sp2)–H Sulfanylation of Benzylamines with a Catalytic Transient Directing Group

open access: yesChemistryEurope
C─H functionalization presents opportunities to streamline the synthesis of valuable molecular structures. This study details the development of a copper‐mediated, transient C(sp2)–H sulfanylation of benzylamines with a transient directing group (TDG ...
Tsz‐Kan Ma   +4 more
doaj   +1 more source

Palladium(II)-Catalyzed othro-C–H-Benzoxylation of 2-Arylpyridines by Oxidative Coupling with Aryl Acylperoxides

open access: yesMolecules, 2013
A palladium(II)-catalyzed ortho-benzoxylation of 2-arylpyridines with aryl acylperoxides was developed. With pyridyl as directing group, the benzoxylation reaction exhibits remarkable regioselectivity and excellent functional group tolerance, providing ...
Wing-Yiu Yu, Chun-Wo Chan, Wing-Nga Sit
doaj   +1 more source

Directing Romeo and Juliet: teacher notes (Active Shakespeare: Capturing evidence of learning) [PDF]

open access: yes, 2010
"Providing active and engaging ways to integrate Shakespeare in the ongoing periodic assessment of pupils’ reading. What is it for?

core  

A connection between the Ghirlanda--Guerra identities and ultrametricity [PDF]

open access: yes, 2009
We consider a symmetric positive definite weakly exchangeable infinite random matrix and show that, under the technical condition that its elements take a finite number of values, the Ghirlanda--Guerra identities imply ultrametricity.Comment: Published ...
Panchenko, Dmitry
core   +7 more sources

The Efficacy and Safety of Bevacizumab/Irinotecan/Temozolomide (BIT) for Relapsed/Refractory Neuroblastoma: The UK Children's Cancer and Leukaemia Group Experience

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Patients with high‐risk neuroblastoma who either are refractory to induction chemotherapy or relapse following multi‐modal treatment have a dismal prognosis. Based on data from the BEACON trial, since 2021 the UK national guidelines recommend bevacizumab, irinotecan, and temozolomide (BIT) for patients with relapsed/refractory ...
Thomas J. Jackson   +20 more
wiley   +1 more source

Experimentation in Algerian Theatrical Directing Critical Reading of Contemporary Theatrical Performances [PDF]

open access: yesZiglôbitha
: The intervention addresses the concept of experimentation in directing practice and the concept’s connection to global directing trends and the artistic and intellectual results that have resulted from it in contemporary theatrical practice .so the ...
Kada Bahri & Elhabib Soualmi
doaj   +1 more source

Directed nickel-catalyzed regio- and diastereoselective arylamination of unactivated alkenes

open access: yesNature Communications, 2021
Few methods exist to add a carbon and nitrogen atom across an unfunctionalized alkene. Here the authors show a method to regio- and diastereoselectively add aryl and amino groups to terminal and internal alkenes, via nickel catalysis and a removable ...
Leipeng Xie   +7 more
doaj   +1 more source

Main group metal lone-pair⋯π(arene) interactions: a new bonding mode for supramolecular associations [PDF]

open access: yes, 2016
Crystal structures of the heavier main group elements in low oxidation states have been evaluated for the presence of supramolecular elementIJlp)⋯π(arene) interactions that are structure-directing.
Caracelli, Ignez   +3 more
core   +1 more source

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