Towards Microcapsules with Improved Barrier PropertiesSpringer Science and Business Media LLC - Tập 375 - Trang 1-18 - 2017
Alexandra Latnikova, Monika Jobmann
Microencapsulation is the generic term for numerous technologies, which are often used when the release rate of an active substance in a medium has to be controlled and/or contact between the active substance and the medium has to be prevented. This is achieved by wrapping the tiny particles or droplets of the active substance (capsule core) with a thin layer, or membrane, of another material (cap...... hiện toàn bộ
New Frontiers in Application of FTIR Microscopy for Characterization of Cultural Heritage MaterialsSpringer Science and Business Media LLC - Tập 374 - Trang 1-32 - 2016
S. Prati, G. Sciutto, I. Bonacini, R. Mazzeo
We present an overview of recent advances in the application of Fourier Transform Infrared (FTIR) microscopy for analysis of complex, multicomponent, and multilayer samples such as those typically encountered in the field of heritage materials. This technique is particularly useful since it allows identification and localization of both organic and inorganic (if IR active) compounds. New improveme...... hiện toàn bộ
Synthesis of Carboxylic Acids and Esters from CO2Springer Science and Business Media LLC - Tập 375 - Trang 1-60 - 2016
Xiao-Feng Wu, Feng Zheng
The achievements in the synthesis of carboxylic acids and esters from CO2 have been summarized and discussed.
Direct Amination of Aromatic C–H Bonds with Free AminesSpringer Science and Business Media LLC - Tập 378 - Trang 1-32 - 2020
Yafeng Yang, Dangquan Zhang, Esmail Vessally
Aromatic amines belong to a highly important class of organic compounds which are found in various natural products, functional materials, and pharmaceutical agents. Their prevalence has sparked continuing interest in the development of highly efficient and environmentally benign synthetic strategies for the construction of these compounds. Cross-dehydrogenative coupling reactions between two unmo...... hiện toàn bộ
Sulfur Radicals and Their ApplicationSpringer Science and Business Media LLC - Tập 376 - Trang 1-42 - 2018
Richard S. Glass
The present review highlights recent developments in the chemistry of sulfur radicals. Background material essential to the understanding of these developments is briefly reviewed and references to previous in depth reviews are cited. The exciting applications of current research involving sulfur radicals in bonding theory, organic synthesis, polymer chemistry, materials science, and biochemistry ...... hiện toàn bộ
N-Heterocyclic Carbene (NHC)/Metal Cooperative CatalysisSpringer Science and Business Media LLC - Tập 377 - Trang 1-15 - 2019
Kazunori Nagao, Hirohisa Ohmiya
N-Heterocyclic carbene (NHC) catalysis can access umpolung reactivity of carbonyl compounds as acyl anions, enolates and homoenolates. Considerable progress has been made in asymmetric transformation by the introduction of chirality to the NHC scaffold. However, the single catalyst system has limitations in chemo-, regio- and stereoselectivity. A solution to these problems has recently emerged wit...... hiện toàn bộ