Results 81 to 90 of about 19,561 (308)

Gold-catalyzed bicyclic annulations of 4-methoxy-1,2-dienyl-5-ynes with isoxazoles to form indolizine derivatives via an Au-π-allene intermediate

open access: yesChemical Science, 2019
Gold-catalyzed bicyclic annulations of 4-methoxy-1,2-dienyl-5-ynes with isoxazoles afford indolizine derivatives; the reaction mechanism involves alkyne attack on a gold π-allene to yield a vinyl gold carbene.
Antony Sekar Kulandai Raj   +4 more
semanticscholar   +1 more source

Tolerância de híbridos de milho ao herbicida isoxaflutole Tolerance of corn hybrids to isoxaflutole

open access: yesPlanta Daninha, 2008
Objetivou-se com este trabalho avaliar a tolerância de híbridos de milho ao isoxaflutole e relacionar estudos de seletividade desse herbicida conduzidos em casa de vegetação com estudos desenvolvidos em campo.
S.D. Cavalieri   +5 more
doaj   +1 more source

Hexacarbonylmolybdenum-induced Reaction of Isoxazoles. Cycloaddition of Isoxazoles with Acetylenic Esters and Related Reactions [PDF]

open access: yesBulletin of the Chemical Society of Japan, 1985
Abstract In the presence of hexacarbonylmolybdenum, substituted isoxazoles undergo a cycloaddition reaction with dimethyl acetylenedicarboxylate across the C-4–C-5 bond to give 3,4-bis(methoxycarbonyl)pyridine derivatives. In a similar cycloadition of isoxazoles with methyl propiolate, 4-(methoxycarbonyl)pyridine derivatives were also ...
Tomoshige Kobayashi, Makoto Nitta
openaire   +3 more sources

Синтез та деякі перетворення 5-ізоксазолілсульфонілхлоридів [PDF]

open access: yes, 2017
The effect of the structure of 5-(benzylthio)isoxazoles on selectivity of the synthesis of 5-(chlorosulfonyl)isoxazoles has been determined. The chemical behavior in relation to amines has been described.Aim. To develop the methods for the synthesis of 5-
Boyko, O. M.   +4 more
core   +2 more sources

ERNEST COST action overview on the (patho)physiology of GPCRs and orphan GPCRs in the nervous system

open access: yesBritish Journal of Pharmacology, Volume 182, Issue 14, Page 3178-3210, July 2025.
G protein‐coupled receptors (GPCRs) are a large family of cell surface receptors that play a critical role in nervous system function by transmitting signals between cells and their environment. They are involved in many, if not all, nervous system processes, and their dysfunction has been linked to various neurological disorders representing important
Necla Birgül Iyison   +15 more
wiley   +1 more source

Simple Access to Isoxazole-Containing Heterocyclic Hybrids: Isoxazole/Oxazole and Isoxazole/Pyridine

open access: yesRussian Journal of General Chemistry, 2023
Abstract The synthesis of substituted isoxazole–oxazole hybrids by the noncatalytic reaction of methyl 2-diazo-2-(alkyl/aryl/hetarylisoxazol-5-yl)acetates with alkyl and aryl cyanides has been reported. According to DFT calculations, the reaction proceeds through the intermediate formation of a nitrile ylide and its ...
A. E. Taishev   +3 more
openaire   +1 more source

Terpenes and Terpenoids: How can we use them?

open access: yesEuropean Journal of Organic Chemistry, Volume 28, Issue 24, June 24, 2025.
The transition from petroleum‐based to renewable bio‐based chemicals has led to increased interest in terpenes and terpenoids. This overview highlights their chemistry, focusing on their reactivity and applications in polymerizations, total syntheses, pharmaceuticals, and bio‐based chemical conversions; promoting sustainable and green chemical ...
Jay Hanssens   +3 more
wiley   +1 more source

Über α‐Methyl‐isoxazol [PDF]

open access: yesBerichte der deutschen chemischen Gesellschaft, 1909
n ...
openaire   +2 more sources

Complexation between oleanolic and maslinic acids with native and modified cyclodextrins [PDF]

open access: yes, 2018
Oleanolic (OA) and maslinic (MA) acids are two natural triterpenoids with a wide range of beneficial effects for human health. However, their low solubility and permeability make their application in the food or industry difficult. The complexation of OA
López Miranda, Santiago
core   +2 more sources

Benzochalcogenodiazoles, Synthesis, and Applications in Medicinal Chemistry and Photomedicine

open access: yesEuropean Journal of Organic Chemistry, Volume 28, Issue 23, June 23, 2025.
Benzochalcogenodiazoles (BXD) including benzoxadiazoles, benzothiadiazoles, and benzoselenadiazoles are initially mainly designed for optoelectronic materials as electron‐deficient cores. Nevertheless, they are now extending their application to biology.
Jean‐Elie Zheng   +2 more
wiley   +1 more source

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