Synthesis of enantiopure sulfinimines (thiooxime S-oxides) catalyzed by Yb(OTf)(3) from p-toluenesulfinamide and aldehydes in mild reaction conditions.

J Org Chem

Department of Chemistry and Central Laboratory of the Institute of Molecular Technology for Drug Discovery and Synthesis, Hong Kong Baptist University, Hong Kong, China.

Published: February 2005

Enantiomerically pure sulfinimines as important building blocks in the asymmetric synthesis of amine derivatives are prepared in good to excellent yields from chiral p-toluenesulfinamide with aromatic, heteroaromatic, and aliphatic aldehydes. The unprecedented feature of the reported procedure is that the formation of the sulfinimines was achieved by the catalytic action of Yb(OTf)(3) in THF at room temperature. The reaction conditions were also applicable to Ellman's sulfinimines.

Download full-text PDF

Source
http://dx.doi.org/10.1021/jo048597eDOI Listing

Publication Analysis

Top Keywords

reaction conditions
8
synthesis enantiopure
4
sulfinimines
4
enantiopure sulfinimines
4
sulfinimines thiooxime
4
thiooxime s-oxides
4
s-oxides catalyzed
4
catalyzed ybotf3
4
ybotf3 p-toluenesulfinamide
4
p-toluenesulfinamide aldehydes
4

Similar Publications

: Major Depressive Disorder (MDD) is a prevalent and debilitating mental disorder that has been linked to hyperhomocysteinemia and folate deficiency. These conditions are influenced by the methylenetetrahydrofolate reductase () gene, which plays a crucial role in converting homocysteine to methionine and is essential for folate metabolism and neurotransmitter synthesis, including serotonin. : This study explored the association between and polymorphisms among Saudi MDD patients attending the Erada Complex for Mental Health and Erada Services outpatient clinic in Jeddah, Saudi Arabia.

View Article and Find Full Text PDF

An Autoethnographic Account of Familial Mediterranean Fever: A Turkish Patient's Discovery of Spiritual Meaning.

J Relig Health

January 2025

Psychiatric Nursing Department, Gulhane Faculty of Nursing, University of Health Sciences, Turkiye, 06010, Etlik, Ankara, Turkey.

Familial Mediterranean Fever (FMF) is a genetic autoinflammatory disorder characterized by recurrent febrile episodes that are accompanied by pain in the abdomen, chest, or joints caused by peritonitis, pleuritis, skin lesions, arthritis, and pericarditis. This original article aims to provide an analytic autoethnographic account of a Turkish patient's experience of FMF, with a focus on the discovery of spiritual meaning. In addition to discussing the grief reactions to a loss of health, the article uses self-reflexive discourse and narrative-based analysis to explore four stages of discovery of spiritual meaning through FMF: "omnipotent me," "God's punishment," "God's test," and "God's mercy.

View Article and Find Full Text PDF

Effect of azithromycin combined with fluticasone propionate aerosol inhalation on immune function in children with chronic cough caused by Mycoplasma pneumoniae infection.

Eur J Pediatr

January 2025

Department of Pediatrics, Ganzhou People's Hospital, No. 16 Meiguan Avenue, Zhanggong District, Ganzhou, 341000, Jiangxi Province, China.

Unlabelled: This research aimed to describe the effect of azithromycin combined with fluticasone propionate aerosol inhalation on immune function in children with chronic cough caused by Mycoplasma pneumoniae (MP) infection. This study was a retrospective analysis in which 110 children with chronic cough caused by MP infection were divided into two groups based on different treatment methods: 58 cases in the control group treated with azithromycin dry suspension and 52 cases in the intervention group treated with azithromycin dry suspension and fluticasone propionate inhalation aerosol. Lung function, inflammatory factors, immune indicators, laboratory-related indicators, adverse reactions, and therapeutic effects were compared between the two groups.

View Article and Find Full Text PDF

Although an ongoing understanding of psoriasis vulgaris (PV) pathogenesis, little is known about the proteomic differences between moderate and severe psoriasis. In this cross-sectional study, we evaluated the proteomic differences between moderate and severe psoriasis using data-independent acquisition mass spectrometry (DIA-MS). 173 differentially expressed proteins (DEPs) were significantly differentially expressed between the two groups.

View Article and Find Full Text PDF

Propidium Monoazide is Unreliable for Quantitative Live-Dead Molecular Assays.

Anal Chem

January 2025

Department of Agricultural and Biological Engineering, Purdue University, West Lafayette, Indiana 47907, United States.

Propidium monoazide (PMA) is a dye that distinguishes between live and dead cells in molecular assays like the Polymerase Chain Reaction (PCR). It works by cross-linking to the DNA of cells that have compromised membranes or extracellular DNA upon photoactivation, making the DNA inaccessible for amplification. Currently, PMA is used to detect viable pathogens and alleviate systemic bias in the microbiome analysis of samples using 16S rRNA gene sequencing.

View Article and Find Full Text PDF

Want 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!