A new catalyst based on metallophthalocyanine nanoparticles has been synthesized and characterized by scanning electron microscopy (SEM). The aqueous oxidation of alcohols to the corresponding carbonyl compounds (aldehydes and ketones) has been studied using tetra-n-butyl-ammonium-peroxo-monosulfate (n-Bu 4 NHSO 5 ) as an oxidant and a catalytic system consisting of copper (II) phthalocyanine nanoparticles in water. The highly selective oxidation gave excellent yields of related aldehydes or ketones without remarkable overoxidation of the carboxylic acids. Organic co-solvents, surfactants, and co-catalysts were not used in this catalytic strategy. This strategy was green and time effective. The oxidant's by-product (TBAHSO 4 ) and catalyst can be efficiently recovered and reused several times without any significant change of catalytic activity.
Graves is a common autoimmune disease of the thyroid which results in many complications especially ophthalmopathy. Graves's ophthalmopathy is an inflammatory process that results in the enlargement of orbital soft tissues and vision problems. There are different approaches offered to the treatment of this problem. Recently the world has faced with covid 19 outbreak crises which can influence other disease and their treatment plans. We performed a review to determine the management of Graves's ophthalmopathy in regards to the SARS-CoV-2 pandemic. We concluded despite common reports of thyroid dysfunction in covid 19 diseases; it is not associated with an increased risk of COVID-19 related hospitalization or a worse outcome. We also recommend orbital radiotherapy and corticosteroid plus selenium supplement as the best choice for Graves ophthalmopathy.
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