Results 41 to 50 of about 4,463,518 (291)

Hydrogenative coupling of nitriles with diamines to benzimidazoles using lignin-derived Rh2P catalyst

open access: yesiScience, 2021
Summary: Nitrile (C≡N bond) activation for direct organic synthesis has been less explored so far due to a high redox potential of nitrile and its low dissociation energy of C−CN bond.
Jiarui Zhang   +4 more
doaj   +1 more source

Direct synthesis of p-methyl benzaldehyde from acetaldehyde via an organic amine-catalyzed dehydrogenation mechanism

open access: yesiScience, 2021
Summary: p-Methyl benzaldehyde (p-MBA) is a class of key chemical intermediates of pharmaceuticals. Conventional industrial processes for p-MBA production involve the consecutive photochlorination, amination, and acid hydrolysis of petroleum-derived p ...
Qing-Nan Wang   +5 more
doaj   +1 more source

Computational organic chemistry

open access: yes, 2013
This review summarizes advances made in the field of computational organic chemistry in 2012, focussing on the following topics: (1) organic structure and bonding, (2) organocatalytic mechanisms, (3) computational structural elucidation, (4) dynamic ...
Jackson, K   +5 more
core   +1 more source

Organocopper Compounds: From Elusive to Isolable Species, from Early Supramolecular Chemistry with RCuI Building Blocks to Mononuclear R2–nCuII and R3–mCuIII Compounds. A Personal View [PDF]

open access: yes, 2012
The first reports on copper-mediated organic reactions and speculations about the role of presumed organocopper compounds as intermediates or transient species date back to the early 20th century.
van Koten, G.   +2 more
core   +1 more source

The The perceptions of Senior High School students and teachers about organic chemistry: A Ghanaian perspective

open access: yesScience Education International, 2021
The purpose of the study was to determine the perceptions that senior high school (SHS) chemistry students and teachers have about organic chemistry as well as to compare organic chemistry topics that are difficult for students and teachers.
Esther Nartey , Ruby Hanson
doaj   +1 more source

ORGANIC CHEMISTRY FOR THE LABORATORY. [PDF]

open access: yesJournal of the American Chemical Society, 1898
n ...
openaire   +1 more source

What lies at the heart of good undergraduate teaching? A case study in organic chemistry [PDF]

open access: yes, 2011
This is a post-print of an article published by the Royal Society of Chemistry available at: http://dx.doi.org/10.1039/C1RP90042K.Teaching organic chemistry at the undergraduate level has long been regarded as challenging and students are often alienated
Davidowitz, Bette, Rollnick, Marissa
core   +2 more sources

Dynamic Combinatorial Libraries: From Exploring Molecular Recognition to Systems Chemistry [PDF]

open access: yes, 2013
Dynamic combinatorial chemistry (DCC) is a subset of combinatorial chemistry where the library members interconvert continuously by exchanging building blocks with each other.
Otto, Sijbren,   +9 more
core   +1 more source

A Lagrangian model of air-mass photochemistry and mixing using a trajectory ensemble: the Cambridge Tropospheric Trajectory model of Chemistry And Transport (CiTTyCAT) version 4.2 [PDF]

open access: yes, 2011
A Lagrangian model of photochemistry and mixing is described (CiTTyCAT, stemming from the Cambridge Tropospheric Trajectory model of Chemistry And Transport), which is suitable for transport and chemistry studies throughout the troposphere. Over the last
Owen, M. S.   +39 more
core   +4 more sources

Infant Embryonal CNS Tumors: Molecular Insights and Treatment Considerations for Contemporary Pediatric Neuro‐Oncology

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Embryonal tumors comprise the majority of malignant central nervous system (CNS) neoplasms diagnosed in children under 3 years of age. Compared with their counterparts in older children, these tumors exhibit distinct molecular biology and a more aggressive clinical phenotype, while their management is complicated by the heightened ...
Sudarshawn Damodharan   +3 more
wiley   +1 more source

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