Angew Chem Int Ed Engl
September 2024
The design of various cycloaddition/annulation processes is one of the most intriguing challenges in the development of donor-acceptor (D-A) cyclopropane chemistry. In this work, a new class of formal high-order [6+n]-cycloaddition and annulation processes of D-A cyclopropanes with cycloheptatriene systems has been designed and reported, to fill a significant gap in the chemistry of D-A cyclopropanes. The reactivity of methylated cycloheptatrienes from Me1 to Me5 as well as unsubstituted cycloheptatriene was studied in detail under GaCl activation conditions, which makes it possible to efficiently generate gallium 1,2-zwitterionic complexes or 1,3-zwitterionic intermediates starting from D-A cyclopropanes, while other Lewis acids are ineffective and non-selective.
View Article and Find Full Text PDFThe objective of this study was to identify and compare the most significant personal features, and social and psychophysiological characteristics of future health-care managers in order to improve the training program for specialists in the field of health care and public health on the basis of modern concepts about the necessary leadership skills and competence. The results of the study make it possible to evaluate the effectiveness of career guidance and selection for training future health-care managers on the basis of the application of the following methods: assessing emotional intelligence and taking into account the psychological characteristics of students. A total of 242 students of medical and preventive care, residents, and undergraduate students who were trained in the program "Factory of Health Leaders" were included in the study evaluating the level of professional training and indicators of emotional intelligence.
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