A photoredox-catalyzed sequential decarboxylative/defluorinative aminoalkylation of CF-alkenes with -arylglycines is described. This metal-free and redox-neutral protocol provided efficient access to the monofluoroalkenyl-1,5-diamines in good yields with excellent functional group compatibility. Mechanistic studies revealed that the reaction proceeds via a radical pathway with the -difluoroalkenyl amine as an intermediate.
View Article and Find Full Text PDFEmerging S-scheme heterojunction photocatalysts endowed with efficient charge separation and strong redox capacity have stimulated wide interests in dealing with environmental issues nowadays. In this work, we firstly fabricated the oxygen vacancy modified ZrTiO nanocrystals, which was further combined with AgI to build the defective S-scheme AgI/ZrTiO heterojunctions for visible-light photocatalytic norfloxacin degradation. The synthesized ZrTiO nanocrystals and AgI/ZrTiO heterojunctions displayed remarkably boosted norfloxacin degradation performance under visible-light irradiation.
View Article and Find Full Text PDFBiotechnol Biofuels
November 2019
Background: Fed-batch fermentation has been conventionally implemented for the production of lactic acid with a high titer and high productivity. However, its operation needs a complicated control which increases the production cost.
Results: This issue was addressed by simplifying the production scheme.
Taiwan J Obstet Gynecol
December 2015
Objective: To assess the clinical significance of low compliance bladder (LCB) in women with lower urinary tract symptoms.
Materials And Methods: Medical records of 1490 women undergoing videourodynamic studies (VUSs) were reviewed. Comprehensive medical histories, physical examinations, bladder diaries, and results of multichannel VUS were analyzed.