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Abstract An efficient method for chemoenzymatic dynamic kinetic resolution of selenium-containing chiral amines (organoselenium-1-phenylethanamines) has been developed, leading to the corresponding… (More)
Abstract Riboflavin derivatives with various substituents ( O -acyl, N -methyl, N -alkylcarboxyalkyl or N -alkyl(trialkyl)ammonium) have been prepared and spectroscopically characterized (absorption,… (More)
Chiral compounds exist as enantiomers that are non-superimposable mirror images of each other. Owing to the importance of enantiomerically pure chiral compounds1—for example, as active pharmaceutical… (More)
A series of organoselenium amines have been synthesized and submitted to the enzymatic kinetic resolution by acetylation mediated by CAL-B (Novozym 435) to give the corresponding chiral amides in an… (More)
A producao de orquideas e uma atividade em crescente expansao nos mercados nacional e internacional, tornando-se evidente a necessidade de informacoes que permitam a otimizacao do seu cultivo. Para a… (More)
This research aims to understand optimal bracing system location used in steel moment resisting frames under earthquake excitation. Bracing systems are used to increase a structure's stability but… (More)