Sulfoximines direct: a new protocol for the chemo- and regioselective ortho C-H acetoxylation of arenes in N-benzoylated sulfoximines is reported. The sulfoximine directing group is easily detached from the C-H oxidation product through acid-promoted hydrolysis, isolated, and reused. The meta-substituted phenols are synthesized following this strategy and the stereointegrity of the sulfoximine is preserved in this transformation. C(sp(3))-H acetoxylation of the methyl group is also demonstrated.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1002/chem.201200092 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Short Aromatic Blocks Enhance Styrene Conversion in Polymer Cubosome Formation via Polymerization-Induced Self-Assembly.
Macromol Rapid Commun
January 2025
School of Materials Science and Engineering, Beihang University, Beijing, 100191, P. R. China.
Polymer cubosomes (PCs) have garnered significant interest in the field of nanomaterials and nanotechnology due to their unique properties and potential applications. However, the fabrication of PCs remains challenging. Polymerization-induced self-assembly (PISA) is recognized as an efficient method for producing a variety of polymer particles, including PCs.
View Article and Find Full Text PDFThe Uluzzian and Châtelperronian: No Technological Affinity in a Shared Chronological Framework.
J Paleolit Archaeol
January 2025
Human Origins Research Unit, Faculty of Archaeology, Leiden University, Einsteinweg 2, 2333 CC Leiden, The Netherlands.
Unlabelled: The Châtelperronian and Uluzzian techno-complexes are identified in western Europe in the same stratigraphic position, between the late Middle Palaeolithic and other Upper Palaeolithic assemblages. Both industries include retouched artefacts with abrupt retouch and arched backs, and radiometric dating indicates that these two technocomplexes belong to the same window of time. Here, we provide a detailed, qualitative technological comparison of two Châtelperronian and two Uluzzian lithic assemblages based on a collaborative, first-hand examination of these collections.
View Article and Find Full Text PDFIntroduction: Alzheimer's disease (AD), Dementia with Lewy bodies (DLB), and Parkinson's disease (PD) represent a spectrum of neurodegenerative disorders (NDDs). Here, we performed the first direct comparison of their transcriptomic landscapes.
Methods: We profiled the whole transcriptomes of NDD cortical tissue by snRNA-seq.
Comorbidity and its association with age are of great interest in geroscience. However, there are few model organisms that are well-suited to study comorbidities that will have high relevance to humans. In this light, we turn our attention to the companion dog.
View Article and Find Full Text PDFThe ability to observe the social behavior of others and use observed information to bias future action is a fundamental building block of social cognition . A foundational question is whether social observation and experience engage common circuit mechanisms that enable behavioral change. While classic studies on social learning have shown that aggressive behaviors can be learned through observation , it remains unclear whether aggression observation promotes persistent neural changes that generalize to new contexts.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!