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In this Special Issue, recent advances in cross-coupling reactions are presented in the form of original research articles, reviews, and short communications. These contributions cover different topics in this area, including novel coupling reactions, reaction conditions, synthetic alternatives, metal ligands, and applications for new pharmaceutical compounds and organic materials. In particular, the reviews deal with methodologies such as the synthesis of diarylketones through palladium catalysis and the most relevant examples of Suzuki–Miyaura and Buchwald–Hartwig coupling reactions in the synthesis of bioactive compounds. The synthetic utility of cross-coupling reactions for the synthesis of medium-size rings and the utility of Stille and Suzuki coupling reactions for the synthesis of new molecular machines based on sterically hindered anthracenyl trypticenyl units are also summarized. The original research articles present the synthesis of 2-alkynylpyrrols by inverse Sonogashira coupling and the synthesis of indoles under oxidative dearomative cross-dehydrogenative conditions. The efficient combination of iridium-catalyzed C–H borylation of aryl halides with the Sonogashira coupling and a sequential iridium-catalyzed borylation of NH-free pyrroles followed by a Suzuki–Miyaura reaction are included. The synthesis of aryl propionic acids, a common structural motif in medicinal chemistry, and the synthesis of new organic dyes are also covered.

Research & information: general --- cross coupling --- dearomatization --- C-H functionalization --- indolin-3-ones --- dimerization and trimerization of indoles --- C–H borylation --- Sonogashira cross-coupling --- borylated aryl alkynes --- one-pot reaction --- restricted rotations --- M(CO)3 tripods --- molecular brakes and gears --- X-ray --- V-T NMR --- borylation --- Suzuki coupling --- NH-Free --- 5-aryl pyrrole-2-carboxylates --- iridium-catalyzed --- heteroaryl substituted pyrroles --- 2,3′-bipyrrole --- electrophilic haloacetylenes --- pyrroles --- ethynylpyrroles --- furans --- thiophenes --- pyrazoles --- Al2O3 --- transition-metal catalysis --- intramolecular cyclization --- medium-sized heterocycles --- C-H activation --- acylation --- palladium --- arenes --- heteroarenes --- indigo dyes --- DSSC --- synthesis --- spectroscopy --- Heck reaction --- styrene --- methoxycarbonylation --- profene --- cross-coupling reactions --- C-C bond forming reactions --- C-Heteroatom bond forming reactions --- clinical candidate --- DNA-encoded libraries --- cyclopeptides --- allosteric modulators --- PROTAC --- catalysis in water --- C–C cross-coupling --- Suzuki–Miyaura reaction --- sulfonated salan --- n/a --- C-H borylation --- 2,3'-bipyrrole --- C-C cross-coupling --- Suzuki-Miyaura reaction

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• Reference Manager
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In this Special Issue, recent advances in cross-coupling reactions are presented in the form of original research articles, reviews, and short communications. These contributions cover different topics in this area, including novel coupling reactions, reaction conditions, synthetic alternatives, metal ligands, and applications for new pharmaceutical compounds and organic materials. In particular, the reviews deal with methodologies such as the synthesis of diarylketones through palladium catalysis and the most relevant examples of Suzuki–Miyaura and Buchwald–Hartwig coupling reactions in the synthesis of bioactive compounds. The synthetic utility of cross-coupling reactions for the synthesis of medium-size rings and the utility of Stille and Suzuki coupling reactions for the synthesis of new molecular machines based on sterically hindered anthracenyl trypticenyl units are also summarized. The original research articles present the synthesis of 2-alkynylpyrrols by inverse Sonogashira coupling and the synthesis of indoles under oxidative dearomative cross-dehydrogenative conditions. The efficient combination of iridium-catalyzed C–H borylation of aryl halides with the Sonogashira coupling and a sequential iridium-catalyzed borylation of NH-free pyrroles followed by a Suzuki–Miyaura reaction are included. The synthesis of aryl propionic acids, a common structural motif in medicinal chemistry, and the synthesis of new organic dyes are also covered.

Research & information: general --- cross coupling --- dearomatization --- C-H functionalization --- indolin-3-ones --- dimerization and trimerization of indoles --- C-H borylation --- Sonogashira cross-coupling --- borylated aryl alkynes --- one-pot reaction --- restricted rotations --- M(CO)3 tripods --- molecular brakes and gears --- X-ray --- V-T NMR --- borylation --- Suzuki coupling --- NH-Free --- 5-aryl pyrrole-2-carboxylates --- iridium-catalyzed --- heteroaryl substituted pyrroles --- 2,3'-bipyrrole --- electrophilic haloacetylenes --- pyrroles --- ethynylpyrroles --- furans --- thiophenes --- pyrazoles --- Al2O3 --- transition-metal catalysis --- intramolecular cyclization --- medium-sized heterocycles --- C-H activation --- acylation --- palladium --- arenes --- heteroarenes --- indigo dyes --- DSSC --- synthesis --- spectroscopy --- Heck reaction --- styrene --- methoxycarbonylation --- profene --- cross-coupling reactions --- C-C bond forming reactions --- C-Heteroatom bond forming reactions --- clinical candidate --- DNA-encoded libraries --- cyclopeptides --- allosteric modulators --- PROTAC --- catalysis in water --- C-C cross-coupling --- Suzuki-Miyaura reaction --- sulfonated salan

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Biosensor technologies have received a great amount of interest in recent decades, and this has especially been the case in recent years due to the health alert caused by the COVID-19 pandemic. The sensor platform market has grown in recent decades, and the COVID-19 outbreak has led to an increase in the demand for home diagnostics and point-of-care systems. With the evolution of biosensor technology towards portable platforms with a lower cost on-site analysis and a rapid selective and sensitive response, a larger market has opened up for this technology. The evolution of biosensor systems has the opportunity to change classic analysis towards real-time and in situ detection systems, with platforms such as point-of-care and wearables as well as implantable sensors to decentralize chemical and biological analysis, thus reducing industrial and medical costs. This book is dedicated to all the research related to biosensor technologies. Reviews, perspective articles, and research articles in different biosensing areas such as wearable sensors, point-of-care platforms, and pathogen detection for biomedical applications as well as environmental monitoring will introduce the reader to these relevant topics. This book is aimed at scientists and professionals working in the field of biosensors and also provides essential knowledge for students who want to enter the field.

Research & information: general --- Chemistry --- Analytical chemistry --- biosensors --- interdigitated electrodes --- impedance spectroscopy --- blood analysis --- whole-cell biosensor --- yeast surface display --- cholesterol oxidase --- glucose dehydrogenase --- electrochemical detection --- fiber optic sensor --- vital signs --- biosensor --- human body --- body temperature --- heart rate --- respiratory rate --- blood pressure --- torso scanning --- antennas --- processing algorithms --- electromagnetic imaging --- polymerase chain reaction --- COVID-19 --- electrochemical --- digital PCR --- point-of-care --- electroanalysis --- indigo dyes --- fast identification --- fingerprints --- differential pulse voltammetry --- cystatin C --- molecularly imprinted polymer --- electrochemical biosensor --- polypyrene --- multiwall carbon nanotubes --- acute kidney injury --- biomonitoring --- personalized healthcare --- sweat --- rolling circle amplification --- environmental monitoring --- heavy metals --- organic molecules --- microorganisms --- biorecognition --- diagnosis --- pathogens --- aptamers --- antibodies --- peptides --- enzymes --- DNAzymes --- peptide nucleic acids --- blood glucose monitoring --- diabetes --- non-invasive sensor --- PDMS --- vascular phantom --- glucometer --- RF sensor --- CD4+ T helper cells --- microfluidic chip --- microbeads --- wide-field optical system --- ImageJ --- graphene --- reduced graphene oxide --- electrochemistry --- electrochemical impedance spectroscopy --- DNA biosensor --- diazonium chemistry --- screen-printed electrodes --- DNA hybridization --- VOCs --- environmental --- packaging --- diagnostic --- pollution --- colorectal cancer --- KRAS --- lateral flow assay --- dipstick --- gold nanoparticles --- diagnostics --- multiplex --- point-of-care diagnostics --- REASSURED