The present invention relates to the field of organic synthesis, and provides an organosilicon betaine type antimicrobial compound having a general formula I and preparation thereof:
the antimicrobial compound provided by the present invention has a reactive functional group—siloxane, which can be subjected to chemical bonding with many material interfaces, thereby endowing a material or article surface treated with the antimicrobial compound I persistent antimicrobial activity. Also, the preparation of the compound has a simple process and easily controlled conditions, and is easy to be industrialized, which facilitates its wide applications.
Rhodium amine complexes tethered on silica-supported metal catalysts. Highly active catalysts for the hydrogenation of arenes
作者:Hanrong Gao、Robert J. Angelici
DOI:10.1039/a900250b
日期:——
TCSM catalysts exhibit activities, at 40°C and 1 atm of H2 pressure, for the hydrogenation of arenes that are higher than those of the separate homogeneous rhodium amine complexes, the separate silica-supported metal heterogeneous catalysts or the rhodium complexcatalysts tethered on just SiO2. The activities of the TCSM catalysts are strongly affected by both the tethered rhodium amine complex and
Aminoalkoxysilane Reactivity in Surface Amine Gradients Prepared by Controlled-Rate Infusion
作者:Balamurali Kannan、Daniel A. Higgins、Maryanne M. Collinson
DOI:10.1021/la303580c
日期:2012.11.20
of more than one amine group on the silane is concluded to enhance the rate of condensation to the surface silanol groups, while the more hindered secondary and tertiary amines slow condensation. Collectively, the results provide valuable new data on how the number of amine groups, degree of substitution, and sterichindranceinfluence silane reactivity with silica surfaces, amine surface coverage