The enantioselective redox annulation of nitroalkynes with indoles is enabled by gold/chiral phosphoric acid dual catalysis. A range of indolin-3-one derivatives bearing quaternary stereocenters at the C2 position were afforded in good yields and excellent enantioselectivities (up to 96 % ee) from readily available starting materials.
Download full-text PDF |
Source |
---|---|
http://dx.doi.org/10.1002/anie.201504697 | DOI Listing |
Angew Chem Int Ed Engl
January 2025
Guangdong University of Technology, No. 100 Waihuan Xi Road, Guangzhou Higher Education Mega Center, Panyu District, 510006, Guangzhou, CHINA.
To enable highly efficient in situ hydrogen release from methanol/water reforming at lower temperature, the integration of solar-energy offers a promising approach to activate methanol/water and substantially lower the activation energy of this reaction. Herein, we present a novel dual-vacancy defective hollow heterostructure derived from Metal-Organic Frameworks, featuring abundant surface hydroxyl groups and S/O vacancies, for photothermal-promoted methanol solution reforming into hydrogen. The [In2S3-x/In2O3-x](OH)y exhibits exceptional photothermal H2 evolution activity, achieving a production rate of 215.
View Article and Find Full Text PDFPharmaceuticals (Basel)
December 2024
Department of Chemistry and Biology "A. Zambelli", University of Salerno, Via Giovanni Paolo II, 132, 84084 Fisciano, Italy.
The strict connections/interactions between microbial infections and cancer are nowadays widely accepted. Hence, the dual (or multiple) targeting of microbial infections and cancer is an essential issue to be addressed. In this context, metal complexes have gained considerable importance and effectiveness in medicinal chemistry.
View Article and Find Full Text PDFInt J Mol Sci
January 2025
School of Pharmaceutical Sciences, Jilin Medical University, Jilin 132013, China.
The association between microRNAs and various diseases, especially cancer, has been established in recent years, indicating that miRNAs can potentially serve as biomarkers for these diseases. Determining miRNA concentrations in biological samples is crucial for disease diagnosis. Nevertheless, the stem-loop reverse transcription quantitative PCR method, the gold standard for detecting miRNA, has great challenges in terms of high costs and enzyme limitations when applied to clinical biological samples.
View Article and Find Full Text PDFJ Environ Sci (China)
July 2025
Shandong Key Laboratory of Environmental Processes and Health, Qingdao Key Laboratory of Marine Pollutant Prevention, School of Environmental Science and Engineering, Shandong University, Qingdao 266237, China. Electronic address:
Photocatalytic water splitting is a promising way to produce H, a green and clean energy source. However, efficient H production typically relies on the addition of electron donors, such as alcohols and acids, which are neither environmentally friendly nor cost-effective. Recently, we have witnessed a surge of studies in coupling photocatalytic H evolution with organic pollutant oxidation, which significantly promotes charge separation and improves the overall photocatalytic efficiency.
View Article and Find Full Text PDFSheng Wu Gong Cheng Xue Bao
January 2025
College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou 310014, Zhejiang, China.
As important biocatalysts, nitrilases can efficiently convert nitrile groups into acids and ammonia in a mild and eco-friendly manner, being widely used in the synthesis of important pharmaceutical intermediates. Early studies reported that nitrilases only had the hydrolysis activity of catalyzing the formation of corresponding carboxylic acid products from nitriles, showing catalytic specificity. However, recent studies have shown that some nitrilases exhibit the hydration activity for catalyzing the formation of amides from nitriles, showing catalytic promiscuity.
View Article and Find Full Text PDFEnter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!