Palladium-Catalyzed Cross-Electrophile Couplings of Aryl Thianthrenium Salts with Aryl Bromides via C-S Bond Activation.

We report here a step-economic and cost-effective cross-electrophile coupling of aryl thianthrenium salts with widely available aryl bromides, which proceeded effectively via C-S bond activation at ambient temperature in THF in the presence of a palladium catalyst, magnesium turnings, and lithium chloride to enable the facile assembly of a wide array of structurally diverse biaryls in modest to good yields with good functional group compatibility. In addition, the gram-scale reaction could also be realized.

Hydroxylation of Aryl Sulfonium Salts for Phenol Synthesis under Mild Reaction Conditions.

Hydroxylation of aryl sulfonium salts could be realized by utilizing acetohydroxamic acid and oxime as hydroxylative agents in the presence of cesium carbonate as a base, leading to a variety of structurally diverse hydroxylated arenes in 47-95% yields. In addition, the reaction exhibited broad functionality tolerance, and a range of important functional groups (e.g.

The Chinese assessment of physical literacy: Based on grounded theory paradigm for children in grades 3-6.

The aim of this study is to construct and validate "physical literacy self-assessment questionnaire" (PLAQ) for Chinese students in grades 3-6. This study uses qualitative and quantitative methods to construct evaluation indicators of PL and determine the weights of each indicator. The 60 items of original PLAQ was based on literature review and interviews, and administered to 1179 primary students graded 3-6 in China.

A study on the efficacy of microwave ablation for benign thyroid nodules and related influencing factors.

Objectives: To explore the efficacy of microwave ablation (MWA) in the treatment of benign thyroid nodules, and analyze related influencing factors.

Methods: The clinical and ultrasound data of 115 patients with 115 benign thyroid nodules treated with MWA were retrospectively analyzed. The volume of nodules at 1, 3, 6, and 12 months after the procedure was obtained, and the volume reduction rate (VRR) at each time point was calculated.

Morphology, crystallization and rheological behavior in poly(butylene succinate)/cellulose nanocrystal nanocomposites fabricated by solution coagulation.

Nanocomposites consisting of poly(butylene succinate) (PBS) and cellulose nanocrystals (CNC) were fabricated by solution coagulation method. Morphology analysis indicated that CNC dispersed well in PBS matrix and rheological analysis suggested that PBS and CNC showed strong interactions. Thermal analysis indicated that the nanocomposites showed slightly increased glass transition temperature, significantly enhanced crystallization temperature and different melting behavior, compared to neat PBS.

Occurrence of lymphoma in non-gonadal organ during pregnancy: a report on four cases and literature review.

Lymphoma rarely occurs during pregnancy, making this condition difficult to define. Lymphomas that occur in reproductive organs during pregnancy exhibit unique clinical characteristics. Among the limited cases, non-Hodgkin's lymphoma (NHL) shows a considerably higher incidence rate than Hodgkin's lymphoma (HL); NHL also displays clinical characteristics, such as high aggressiveness, advanced stage, and poor outcome.

[Analysis of Clinicopathological Characteristics and Prognosis of 112 Patients with Primary Waldeyer's Ring Lymphoma].

Objective: To investigate the clinical and pathological characteristics of patients with primary Waldeyer's ring lymphomas (PWRL), and to analyze its therapeutic efficacy and prognostic factors.

Methods: A total of 112 patients with PWRL confirmed by pathological and immunohistochemical methods between January 2009 and January 2014 were studied. Clinical data were collected and analyzed retrospectively.

Highly sensitive and selective fluorescent detection of cerebral lead(II) based on graphene quantum dot conjugates.

A novel probe based on graphene quantum dot conjugates was developed for fluorescent detection of Pb(2+) (LOD: 9 pM) and furthermore for monitoring Pb(2+) in the striatum of rat, combined with microdialysis sampling in vivo.