Results 31 to 40 of about 569,679 (363)

Green Organoselenium Chemistry: Selective Syntheses of New 1,4-Thiaselenine Derivatives Based on Reactions of Thiaselenole Reagent with Alcohols and Water

open access: yesInorganics, 2023
Environmentally friendly synthetic methods were developed for the selective preparation of new 2,3-dihydro-1,4-thiaselenine derivatives in high yields based on the reactions of 2-bromomethyl-1,3-thiaselenole with alcohols and water at room temperature ...
Svetlana V. Amosova   +4 more
doaj   +1 more source

Palladium-catalyzed selective activation of allyl alcohols as allyl cations, allyl anions, and zwitterionic trimethylenemethanes [PDF]

open access: yes, 2008
Pd-Et3B catalytic system promotes the generation of allyl cations, allyl anions, and zwitterionic trimethylenemethane species from the corresponding allylic alcohols. Allyl cations react with a wide variety of nucleophiles, e.g., amines, active methylene
Tamaru, Yoshinao, Kimura, Masanari
core   +1 more source

Phospholipase D in Phytophthora infestans and Its Role in Zoospore Encystment

open access: yesMolecular Plant-Microbe Interactions, 2002
We show that differentiation of zoospores of the late blight pathogen Phytophthora infestans into cysts, a process called encystment, was triggered by both phosphatidic acid (PA) and the G-protein activator mastoparan. Mastoparan induced the accumulation
Maita Latijnhouwers   +2 more
doaj   +1 more source

Reductive Transformation of O-, N-, S-Containing Aromatic Compounds under Hydrogen Transfer Conditions: Effect of the Process on the Ni-Based Catalyst

open access: yesMolecules, 2023
The influence of the reaction medium on the surface structure and properties of a Ni-based catalyst used for the reductive transformations of O-, N-, and S-containing aromatic substrates under hydrogen transfer conditions has been studied.
Nikolai S. Nesterov   +5 more
doaj   +1 more source

Morphology–acidity synergy in ZSM-5 for selective para-xylene synthesis via CO2/H2-mediated toluene methylation

open access: yesJournal of CO2 Utilization
CO2/H2-mediated toluene methylation over metal oxide–zeolite bifunctional catalyst offers a sustainable route for para-xylene (PX) synthesis, yet how zeolite morphology and acidity synergistically govern this coupled process remains unclear.
Bilyu Hong   +7 more
doaj   +1 more source

Visible-light-induced aerobic photocatalytic oxidation of alcohols to carboxylic acids over practical NaBr/NH2-MIL-125(Ti) catalyst system

open access: yes, 2022
Carboxylic acids, as a fundamental raw material, are widely used in the production of fine chemicals. Herein, we developed the oxidation of alcohols to carboxylic acids under visible light irradiation at room temperature by devising a duplex NH2-MIL-125 ...
Xiuzhi, Wei, Jianguo, liu, Longlong, Ma
core   +1 more source

Palladium-Catalyzed Allylation/Benzylation of H-Phosphinate Esters with Alcohols

open access: yesMolecules, 2016
The Pd-catalyzed direct alkylation of H-phosphinic acids and hypophosphorous acid with allylic/benzylic alcohols has been described previously. Here, the extension of this methodology to H-phosphinate esters is presented. The new reaction appears general,
Anthony Fers-Lidou   +2 more
doaj   +1 more source

Alcohol. [PDF]

open access: yesBMJ, 1982
Abstract There is evidence for a dose-response relationship between alcohol consumption and risk of liver cirrhosis, cancers of the oropharynx, larynx, oesophagus, rectum (beer only), liver, and female breast, and violent death, but the relationship between alcohol consumption and cardiovascular disease is more complex.
openaire   +2 more sources

Residual tail twisting in ascidian larvae is stabilized by asymmetric myofibrils that resist bilateral symmetry restoration

open access: yesFEBS Letters, EarlyView.
Ascidian Ciona larvae initially show strong clockwise tail twisting, which is largely corrected during development. However, a small residual twist remains. This study shows that organized helical myofibrils in tail muscles mechanically stabilize this residual asymmetry, preventing complete restoration of bilateral symmetry and revealing how embryos ...
Yuki S. Kogure   +3 more
wiley   +1 more source

ALCOHOLISM [PDF]

open access: yesThe Journal of Nervous and Mental Disease, 1892
n ...
openaire   +2 more sources

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