Results 61 to 70 of about 1,721 (198)

Asymmetric organocascades involving the formation of two C-heteroatom bonds from two distinct heteroatoms [PDF]

open access: yes, 2012
International audienceIn the vast and expanding world of enantioselective organocascades, the ones in which two C-heteroatom bonds are created from two distinct heteroatoms are rare.
Bonne, Damien   +3 more
core   +3 more sources

Diverse reactivity of maleimides in polymer science and beyond

open access: yesPolymer International, Volume 74, Issue 4, Page 296-306, April 2025.
This mini‐review provides a thorough overview of maleimide chemistry, highlighting its diverse reactivity in polymer and materials science applications. Abstract Maleimides are remarkably versatile functional groups, capable of participating in homo‐ and copolymerizations, Diels–Alder and (photo)cycloadditions, Michael additions, and other reactions ...
Bruce E Kirkpatrick   +2 more
wiley   +1 more source

Addition and cycloaddition reactions of Phosphinyl- and Phosphonyl-2H-Azirines, Nitrosoalkenes and Azoalkenes [PDF]

open access: yes, 2012
An overview of the use of 2H-azirines, conjugated nitrosoalkenes and conjugated azoalkenes bearing phosphorus substituents in addition and cycloaddition reactions is presented, focused on strategies for the synthesis of aminophosphonate and ...
Lemos, A.
core  

Design and Synthesis of Stereogenic-at-Iron Complexes with Multidentate Ligands and Application in Asymmetric Catalysis [PDF]

open access: yes, 2023
Asymmetric catalysis is an indispensable tool of great importance for the economic and sustainable synthesis of non-racemic chiral molecules. In addition to organic compounds and biomolecules, chiral transition metal complexes represent a pivotal pillar ...
Steinlandt, Philipp Stefan
core   +1 more source

Addition and Cycloaddition Reactions of Phosphinyl- and Phosphonyl-2H-Azirines, Nitrosoalkenes and Azoalkenes

open access: yesMolecules, 2009
An overview of the use of 2H-azirines, conjugated nitrosoalkenes and conjugated azoalkenes bearing phosphorus substituents in addition and cycloaddition reactions is presented, focused on strategies for the synthesis of aminophosphonate and ...
Américo Lemos
doaj   +1 more source

Composite Single‐Reference and Explicitly Correlated Multireference Calculations on the Mechanism of Pyrrole Pyrolysis

open access: yesJournal of Physical Organic Chemistry, Volume 39, Issue 4, April 2026.
New calculations have been applied to the pyrolysis of pyrrole under shock‐tube conditions and to the radical‐radical reaction between allyl and •CN at low temperature and pressure, using the same mechanistic scheme for both. ABSTRACT The pyrolysis of pyrrole has previously been studied in shock‐tube experiments and in jet‐stirred reactors. The results
Barry K. Carpenter
wiley   +1 more source

Updating the list of known opioids through identification and characterization of the new opioid derivative 3,4-dichloro-N- (2-(diethylamino)cyclohexyl)-N- methylbenzamide (U-49900) [PDF]

open access: yes, 2017
New psychoactive substances have been rapidly growing in popularity in the drug market as non-illegal drugs. In the last few years, an increment has been reported on the use of synthetic alternatives to heroin, the synthetic opioids.
Carbón, X.   +7 more
core   +1 more source

Recent Contributions of Organic Synthesis to Forensic Science

open access: yesChemPlusChem, Volume 91, Issue 2, February 2026.
Forensic science is a multidisciplinary field that plays a vital role in providing scientific evidence for criminal investigations. This review highlights advances and opportunities at the interface between organic synthesis and forensic science, with applications in drug identification, forensic toxicology, and latent fingerprint detection and ...
Gustavo dos Santos Martins   +3 more
wiley   +1 more source

Trapping an Aryl‐substituted Borete Intermediate in Catalyst‐free 1,5‐Diborocine Synthesis

open access: yesEuropean Journal of Inorganic Chemistry, Volume 29, Issue 4, February 1, 2026.
A transient aryl‐substituted borete was trapped as its adduct with 4‐(dimethylamino)pyridine (dmap) and fully characterised. While the dmap adduct is highly kinetically stable, the free borete could not be observed in the absence of dmap. Density‐functional calculations support a rapid dimerisation of the borete via (4 + 4) cycloaddition, yielding a 1 ...
Douglas Turnbull, Marc‐André Légaré
wiley   +1 more source

Chemistry of 1,3-Dioxepins. XVI.1 The Synthesis, Characterization and Crystallographic Analysis of Some Arylsulphanyl-, Arylsulphinyl-, Arylsulphonyl- and Benzoyl- N-Substituted Derivatives of 1a,2,6,6a-Tetrahydro-1H,4H-[1,3]dioxepino[5,6-b]azirines [PDF]

open access: yes, 2006
Chemo-selective synthesis and characterization of N-[(4-nitrophenyl)sulphanyl]- 2 and N-[(4- nitrophenyl)sulphinyl]- 3 N-[(4-aminophenyl)sulphonyl]- 5 and N-(4-aminobenzoyl)- 7 derivatives of 1a,2,6,6a-tetrahydro-1H,4H-[1,3]dioxepino[5,6-b]azirines ...
Biserka Prugovečki   +3 more
core   +1 more source

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