Organophosphorus compounds with a phosphorus atom attached to a phenyl group and two organothio/organoseleno groups were synthesized using the rhodium-catalyzed insertion reaction of the PhP group of pentaphenylcyclopentaphosphine (PhP) with acyclic disulfides and diselenides. The method was applied to the synthesis of heterocyclic compounds containing the S-P-S group by the reaction of (PhP) and cyclic disulfides such as 1,2-dithietes, 1,2-dithiocane, 1,4,5-dithiopane, and 1,2-dithiolanes.
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http://dx.doi.org/10.1021/acs.orglett.7b03825 | DOI Listing |
Chem Sci
January 2025
Institute of Inorganic Chemistry, University of Duisburg-Essen Universitätsstraße 5-7 D-45141 Essen Germany https://www.uni-due.de/ak_schulz/index_en.php.
1,3-Diphosphaallenes are a new class of heavier heteroallenes and show a fascinating chemical behavior and reactivity. Herein we report on the room temperature transformation of gallaphosphene LGa(OCP)PGaL 1 (L = HC[C(Me)N(Ar)], Ar = 2,6-i-PrCH) to the six-membered metallaheterocycle LGa(PCP)OGaL 2 featuring a LGa-substituted 1,3-diphosphaallene unit. The possible mechanism of formation of 2 is supported by quantum chemical calculations, which revealed that the formation of 2 is energetically more favorable ( 2 kcal mol) than the formation of 1 at ambient temperature.
View Article and Find Full Text PDFSmall
December 2024
Corrosion Laboratory for Light Metals, College of Materials Science and Engineering, Shandong University of Science and Technology, Qingdao, 266590, P. R. China.
Corrosion and degradation of magnesium (Mg) alloy result in serious damage and limit its application in new-energy automobile industry. Considerable protective coating is proposed, yet it is hindered by the difficulties in avoiding and visually monitoring coating micro-damage and localized metal corrosion. Herein, a novel anticorrosion coating system with autonomously monitoring multiple levels of damages in coated Mg-alloy system, is proposed.
View Article and Find Full Text PDFActa Med Philipp
October 2024
Department of Pharmacy, College of Pharmacy, University of the Philippines Manila.
Objectives: To assess the clients' perceptions of the UP College of Pharmacy (UPCP) Telepharmacy Service on their knowledge, decision-making, and medication safety.
Methods: The study employed a cross-sectional design administered through guided voice-call interviews using an online survey questionnaire as the data collection instrument. The inclusion criteria of the study were as follows: (1) must be at least 18 years old, (2) with no cognitive impairment, (3) must have sent a medication-related query in the UPCP Telepharmacy Service between October 2020 and July 2022, and (4) must be contacted through voice call platforms.
Front Pharmacol
October 2024
Dongzhimen Hospital, Institute of Nephrology and Beijing Key Laboratory, Beijing University of Traditional Chinese Medicine, Beijing, China.
Background: Chinese herbal medicines have been extensively used to treat idiopathic membranous nephropathy (IMN). However, their efficacy and safety remain uncertain. Therefore, this study employed a network meta-analysis to evaluate the efficacy and safety of various Chinese herbal medicines in combination with biomedicines for treating IMN.
View Article and Find Full Text PDFTo systematically evaluate the efficacy and safety of the Guanxinshutong capsule (GXST) combined with Western medicine (WM) in treating stable angina pectoris (SAP). Randomized controlled trials (RCTs) evaluating the efficacy of GXST combined with WM for the treatment of patients with SAP were searched across several databases, including the Cochrane Library, PubMed, Embase, the Chinese National Knowledge Infrastructure (CNKI), the Chinese Science and Technology Journal Database (VIP), and Wan Fang, from inception until 30 April 2024. Two independent reviewers rigorously performed study selection, data extraction, and quality assessment.
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