Sodium salt of aryl sulfinic acid reacts with enynone in a different manner, yielding α-furyl sulfone and stereodefined vinyl sulfone in toluene and EtOH respectively in the presence of ZnCl. The salient features of this protocol include chemoselectivity, broad substrate scope, high efficiency, high yield, and easy purification. The synthetic utilities of the products are demonstrated by cycloaddition and cis-trans photoisomerization reactions.
View Article and Find Full Text PDFWe develop a rapid and mild protocol to access sulfonimidoyl fluoride-[S(VI)] from sulfenamide-[S(II)] directly. The transformation occurs via the reaction of sulfenamide with NCS (-chlorosuccinimide), water, and TBAF in acetonitrile. Water and TBAF act as the source for S═O bond formation and fluoride, respectively.
View Article and Find Full Text PDFUltrason Imaging
January 2025
This study addresses the challenge of precise breast tumor segmentation in ultrasound images, crucial for effective Computer-Aided Diagnosis (CAD) in breast cancer. We introduce CBAM-RIUnet, a deep learning (DL) model for automated breast tumor segmentation in breast ultrasound (BUS) images. The model, featuring an efficient convolutional block attention module residual inception Unet, outperforms existing models, particularly excelling in Dice and IoU scores.
View Article and Find Full Text PDFThis article describes the synthesis of -silyloxy benzylsulfoximine the reaction of salicylaldehyde and sulfoximine in the presence of silane and InCl. The steps include simultaneous reductive sulfoximination and an -silylation process. To the best of our knowledge, this is the first report of this kind of reaction, where both reductive amination (here sulfoximination) and -silylation occur concurrently.
View Article and Find Full Text PDF