Copper-Catalyzed Oxidative α-Double Bond Construction in α-Amino Carbonyl Compounds via Homocoupling with Arylamine Release.

Herein, we present a copper-catalyzed method for oxidative α-double bond formation in α-amino ketone compounds using DTBP as the oxidant. This process, involving homocoupling of α-amino radicals and arylamine release, efficiently produces a series of enaminone skeletons. The strategy has a broad substrate scope and functional group tolerance.

Research Progress on the Association between Schizophrenia and Infection.

( ), is an obligatory intracellular parasite with humans as its intermediate hosts. In recent years, significant correlations between infection and schizophrenia have been reported, including the possible mediating mechanisms. Currently, mechanisms and hypotheses focus on central neurotransmitters, immunity, neuroinflammation, and epigenetics; however, the exact underlying mechanisms remain unclear.

Sensitivity of from China to Five Fungicides and Characterization of Carbendazim-Resistant Isolates.

Peach scab is a fungal disease caused by that can significantly reduce peach yield and quality. Fungicide application is the main control measure for peach scab worldwide. To better understand the fungicide-resistance status and devise suitable management strategies, the sensitivity of 135 single-spore isolates to the commonly used fungicides carbendazim, iprodione, propiconazole, azoxystrobin, and boscalid were determined using a microtiter plate test method.

[Impact of low-frequencies noise on the ability of thinking and judgment].

Three typical low frequency noise samples which were collected from some associated facilities in urban residential areas and white noise which was produced by acoustic apparatus were selected to compare the competence of brainwork index (AYP) and error rate in noisy environment with those in quiet environment, using dosage exercise method. The result indicates that AYP is lower in noisy environment and the error rate is higher than that in quiet environment, and there are significant differences between them. The changes of most testees in groups that use three different low frequency noise samples respectively are more obvious than the group that uses white noise, and the AYP difference attains significant level.