Results 91 to 100 of about 1,032 (168)
The Thermal Decomposition of Cyclobutane [PDF]
Proceedings of the National Academy of Sciences, 1952 F, Kern, W D, Walters
openaire +2 more sources
Nature CommunicationsThe formation of boronate complexes through the coordination of alkoxide salts with organoborons serves as key intermediates in transition-metal-catalyzed coupling reactions.
Xin-Yuan Zhu +3 more
doaj +1 more source
A Modular Assembly of Amino Azetidines, Oxetanes, and Cyclobutanes
N-Boc azetidinone smoothly reacts with secondary amines and benzotriazole at room temperature to provide Katritzky benzotriazole adducts. The subsequent addition of Grignard reagents afforded amino azetidines.
Andrii Slobodianyk +9 more
core +1 more source
Chemistry &Biodiversity, Volume 23, Issue 9, September 2026.This review presents the visible‐light‐mediated photochemical reaction for the synthesis of aza, oxa, and aza–oxa spirocyclic compounds via photoinduced electron transfer (PET), hydrogen atom transfer (HAT), single‐electron transfer (SET), or energy transfer (EnT) pathways.
Annu Bhardwaj +4 more
wiley +1 more source
N‐Aryl Acridone Derivatives as Effective Catalysts for Energy Transfer Reactions
Chemistry – A European Journal, Volume 32, Issue 33, 1 September 2026.Acridones derivatives have high triplet energy, are simple accessible, and could be used in challenging [2+2] ENT reactions. ABSTRACT Organic photocatalysts capable of promoting high‐energy triplet energy transfer (EnT) remain limited, particularly for demanding [2+2] photocycloaddition reactions.
Francesco Calogero +8 more
wiley +1 more source
A modular approach to prepare enantioenriched cyclobutanes: synthesis of (+)-rumphellaone A [PDF]
, 2019 A modular synthesis of enantioenriched polyfunctionalized cyclobutanes was developed that features an 8-aminoquinolinamide directed C–H arylation reaction. The C–H arylation products were derivatized through subsequent decarboxylative coupling processes.
Beck, Jordan C. +3 more
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Journal of Physical Organic Chemistry, Volume 39, Issue 9, September 2026.Physical organic chemistry transforms photoaffinity labeling from empirical photochemistry into rational probe design. By measuring reactive‐intermediate lifetimes, pathways, and selectivity, Platz's legacy connects carbene and nitrene mechanisms to modern chemoproteomics, enabling more precise protein labeling and drug‐discovery maps.
Bin Yang, Jin Wang
wiley +1 more source
RAD51 and RAD51 paralog inhibition sensitizes nonreplicating quiescent keratinocytes to UV radiation
Photochemistry and Photobiology, Volume 102, Issue 5, Page 1138-1149, September/October 2026.UV radiation and other compounds generate DNA adducts that block transcription and induce cell death if not removed by the nucleotide excision repair system. In this work, we used a small‐scale pharmacological screen to discover that inhibition of the recombinase RAD51 sensitized nonreplicating quiescent keratinocytes to both UVR and other agents that ...
Saman Khan +3 more
wiley +1 more source
Photodermatology, Photoimmunology &Photomedicine, Volume 42, Issue 5, September 2026.ABSTRACT Background/Purpose Visible light (VL), and particularly high‐energy visible light (HEVL), reaching Earth's surface has emerged as a relevant contributor to skin damage. VL has been implicated in oxidative stress, inflammation, pigmentation disorders, and photoaging, especially in individuals with darker skin phototypes.
Azahara Rodríguez‐Luna +5 more
wiley +1 more source
Revista de Ciências Farmacêuticas Básica e Aplicada, 2010 O objetivo deste trabalho é avaliar a eficácia e a segurança da dose de 20 mg/dia de sibutramina em voluntários obesos, com IMC superior a 35, e compará-las com a dose de 10 mg/dia e à mudança de estilo de vida de pacientes com IMC inferior a 35 (a ...
Carlos Alberto Menezes +4 more
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