Synthesis, characterization, and catalytic performance of Aluminum and Tin Compounds with β-diketiminato ligand

Publication date: Available online 7 May 2018 Source:Journal of Organometallic Chemistry Author(s): Yi Ding, Xin Liu, Xiaoli Ma, Yashuai Liu, Mingdong Zhong, Wenling Li, Zhi Yang, Ying Yang Two new tin (II) and tin (IV) compounds [LSnCl] (1) and [LSnCl3] (2), bearing the β-diketiminato ligand LH (L = HC(CMeNAr)2, Ar = 2,6-Et2C6H3) were synthesized by the reactions of LH with n-BuLi, then respectively with SnCl2 and SnCl4. Two new aluminum alkyl compounds, [LAlMe2] (3) and [LAlEt2] (4), were synthesized in high yield from the reactions of LH with AlMe3 and AlEt2, respectively. Compound [LAlI2] (5) was synthesized from the reaction of 3 with I2 in good yield. All these main group metal compounds bearing β-diketiminato ligand LH were fully characterized by 1H NMR and 13C NMR spectroscopy, and elemental analysis. Meanwhile, compounds 1, 2, 3, and 5 were characterized by single crystal X-ray structural analysis. Moreover, the well-defined compounds 1–4 were investigated to show good catalytic activity in hydroboration of terminal alkynes.
Source: Journal of Organometallic Chemistry - Category: Chemistry Source Type: research

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Authors: San C, Lê MP, Matheron S, Mourvillier B, Caseris M, Timsit JF, Wolff M, Yazdanpanah Y, Descamps D, Peytavin G Abstract HIV infection has evolved into a chronic disease with comorbidities since the combination antiretroviral therapy era. Complications still occur and patients may need to be admitted to an intensive care unit. Acute respiratory failure is the first cause of these admissions, questioning the administration of solid oral dosage formulations. This issue is also observed in geriatric units where the prevalence of dysphagia is high and underestimated. The problem of antiretroviral administr...
Source: Medecine et Maladies Infectieuses - Category: Infectious Diseases Tags: Med Mal Infect Source Type: research
Authors: Petitdemange A, Martin A, Ruch Y, Chatron E, Karol A, Hansmann Y PMID: 31722863 [PubMed - as supplied by publisher]
Source: Medecine et Maladies Infectieuses - Category: Infectious Diseases Tags: Med Mal Infect Source Type: research
Authors: Soumah A, Avettand-Fenoel V, Veber F, Moshous D, Mahlaoui N, Blanche S, Frange P Abstract OBJECTIVES: To assess the outcome of HIV-infected individuals attending one of the largest French pediatric HIV centers in 2016-2017 and to compare the rates of antiretroviral coverage and virological suppression with the UNAIDS targets. PATIENTS AND METHODS: The clinical and immuno-virological status of 163 HIV-1-infected children and adolescents attending Necker Hospital in Paris, France, were investigated. Virological suppression was defined as an HIV-1 viral load
Source: Medecine et Maladies Infectieuses - Category: Infectious Diseases Tags: Med Mal Infect Source Type: research
Authors: Voitey M, Bouiller K, Chirouze C, Fournier D, Bozon F, Klopfenstein T Abstract INTRODUCTION: Little is known about the functional symptoms associated with Lyme borreliosis (LB) in Europe. We aimed to assess functional symptoms associated with presumed LB and to compare patients with and without confirmed LB. MATERIALS AND METHODS: We performed a retrospective monocenter study. Patients consulting for presumed LB were included. RESULTS: Between November 2015 and June 2018, 355patients were included (mean age: 51years, 52% of women) of which 48had LB: erythema migrans (42%), early disseminated LB (50...
Source: Medecine et Maladies Infectieuses - Category: Infectious Diseases Tags: Med Mal Infect Source Type: research
Authors: Rahman M, Beg S PMID: 31722657 [PubMed - in process]
Source: Recent Patents on Anti-Infective Drug Discovery - Category: Infectious Diseases Tags: Recent Pat Antiinfect Drug Discov Source Type: research
Publication date: Available online 15 November 2019Source: Oral Surgery, Oral Medicine, Oral Pathology and Oral RadiologyAuthor(s): Konstantinos I. Tosios, Eleni-Marina Kalogirou, Nikolaos G. Nikitakis
Source: Oral Surgery, Oral Medicine, Oral Pathology and Oral Radiology - Category: ENT & OMF Source Type: research
ConclusionThe method achieved high performance for automation of tooth segmentation on dental panoramic images. The proposed method might be applied in the first step of diagnosis automation and in forensic identification, which involves similar segmentation tasks.
Source: Oral Surgery, Oral Medicine, Oral Pathology and Oral Radiology - Category: ENT & OMF Source Type: research
ConclusionsSequestra and periosteal new bone formation were characteristic CT features of osteomyelitis that were found more commonly in the medication-related condition. These findings may be useful in the evaluation of osteomyelitis and medication-related osteonecrosis of the jaw.
Source: Oral Surgery, Oral Medicine, Oral Pathology and Oral Radiology - Category: ENT & OMF Source Type: research
ConclusionAcceptance QA testing was effective in detecting discrepancies and establishing optimal exposure doses that were within the DRL and AD established by the National Council on Radiation Protection and Measurements and the ESE established by the state of Texas.
Source: Oral Surgery, Oral Medicine, Oral Pathology and Oral Radiology - Category: ENT & OMF Source Type: research
Publication date: Available online 15 November 2019Source: British Journal of Oral and Maxillofacial SurgeryAuthor(s): L. May, J. Blatter, P. Bize, G. Tsoumakidou, A. Denys, M. BroomeAbstractTreatment of bony tumours of the oral and maxillofacial area usually involve resection. However, access to certain areas may be difficult because of the size or site of the tumour. A poor view of the lesion during operation is another limiting factor, which can lead to incomplete resection in difficult cases. Percutaneous cryoablation is a common procedure for treating benign and malignant bony lesions outside the oral and maxillofacia...
Source: British Journal of Oral and Maxillofacial Surgery - Category: ENT & OMF Source Type: research
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