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1.
Fatima Hassine Said Gmouh Mathieu Pucheault Michel Vaultier 《Monatshefte für Chemie / Chemical Monthly》2007,57(12):1167-1174
In this work was presented an application of the use of task specific onium salts (TSOSs) as soluble supports in Grieco’s multicomponent synthesis of tetrahydroquinolines. These soluble supports are of wide applicability and combine advantages
of solid phase synthesis without its limitations with those of solution phase chemistry. After a simple washing step, products
were cleaved from the supports and obtained in pure form and good yields. 相似文献
2.
Christians Ferradini Jacques Foos Chantal Houee Jacques Pucheault 《Photochemistry and photobiology》1978,28(4-5):697-700
Abstract— In order to obtain a better understanding of the kinetics of the Haber-Weiss reaction
often proposed as a source of OH radicals, we have measured the decomposition rate of H2 O2 in aqueous solutions by y rays and for different pH values. This decomposition proceeds by a chain reaction involving the preceding one as the propagating step.
The rate constant found is to be
相似文献
often proposed as a source of OH radicals, we have measured the decomposition rate of H
The rate constant found is to be
相似文献
3.
Mélodie Birepinte Dr. Virginie Liautard Dr. Laurent Chabaud Dr. Mathieu Pucheault 《Chemistry (Weinheim an der Bergstrasse, Germany)》2020,26(15):3236-3240
Owing to the unusual reactivity of sterically hindered amine–borane complexes, a catalytic system based on magnesium salts was designed to perform a tandem dehydrogenation–dehydrocoupling between terminal alkynes and boranes. The reaction is providing pure alkynylboranes within few minutes at room temperature, with only two molecules of hydrogen as a byproduct. 相似文献
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Pucheault M 《Organic & biomolecular chemistry》2008,6(3):424-432
As a striking variety of biological activities are elicited by natural products, these chemicals have been used for decades to study biological phenomena. Understanding how these products interfere with normal cell functions at a molecular level led to a wide range of discoveries including new signaling pathways and proteins. Moreover, as natural products often act as chemical inhibitors, such studies often allow the identification of their binding partners as relevant targets for drug design. This article aims to emphasize how natural products or engineered analogs can be used as chemical tools to apprehend some biological problems from the point of view of a chemical biologist. 相似文献
6.
Marciasini L Richy N Vaultier M Pucheault M 《Chemical communications (Cambridge, England)》2012,48(10):1553-1555
Sequential borylation of a first aryl iodide using a dialkylaminoborane followed by a Suzuki-Miyaura cross coupling of second aryl iodide ended up with an efficient, selective and practical synthesis of unsymmetrical biaryls. This tandem coupling shows a wide range of applicability. 相似文献
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Christiane Ferradini Jacques Foos Lucien Gilles Didier Haristoy Jacques Pucheault 《Photochemistry and photobiology》1978,28(4-5):851-855
Abstract— The radiolytic studies of oxyhemoglobin or methemoglobin in neutral aerated aqueous solutions with formate ions, lead to three conclusions:
The oxidation of oxyhemoglobin by O- 2 is not important. The observed low oxidation yield is probably due to the slow reaction with hydrogen peroxide produced by O- 2 disproportionation.
The reduction of methemoglobin in γ radiolysis reaches a plateau which could be explained by structural considerations.
The reduction of methemoglobin by O- 2 ions, if it occurs, is relatively slow: k = 1.4 × 103 M -1 s-1 . But a problem remains concerning the spectral characteristics of the product. 相似文献
The oxidation of oxyhemoglobin by O
The reduction of methemoglobin in γ radiolysis reaches a plateau which could be explained by structural considerations.
The reduction of methemoglobin by O
9.
Khadija Ben Hadj Hassen Kevin Gaubert Michel Vaultier Mathieu Pucheault 《Green Chemistry Letters and Reviews》2014,7(3):243-249
We describe a study of the gallium(III)-catalyzed 1,6-enynes cycloisomerization reaction in both homogeneous and heterogeneous conditions. With GaBr3 in homogeneous conditions, some particularities were observed in terms of selectivity compared to reported GaCl3-catalyzed reactions. The transfer of the reaction in heterogeneous conditions was realized by supporting Ga(III) salts onto montmorillonite. Both systems were compared based on reaction times, conversion, and selectivity and showed complementary activities. 相似文献
10.
T Gendrineau S Marre M Vaultier M Pucheault C Aymonier 《Angewandte Chemie (International ed. in English)》2012,51(34):8525-8528
On the surface: A library of organic-inorganic hybrid palladium nanocrystals was synthesized using continuous supercritical microfluidic technology. The nanocatalysts show moderate to excellent activities towards C(Ar) ?B and C(Ar) ?C(Ar) bond-forming reactions, thus illustrating the relationship between surface properties and modulated catalytic activity. 相似文献