Metal-free, visible-light-mediated, decarboxylative alkylation of biomass-derived compounds
作者:Johanna Schwarz、Burkhard König
DOI:10.1039/c6gc01101b
日期:——
This work describes a mild, environmentally friendly method to activate natural carboxylic acids for decarboxylativealkylation. After esterification of biomass-derived acids to N-(acyloxy)phthalimides, the active esters are cleaved reductively by...
Direct photolysis of 4-<i>tert</i>-alkyl-1,4-dihydropyridines under blue-light irradiation for the generation of tertiary alkyl radicals
作者:Prasadi C. Gallage、Spencer P. Pitre
DOI:10.1039/d2gc02153f
日期:——
Herein, we disclose a direct photolysis approach for the generation of tertiary alkylradicals from 4-tert-alkyl-1,4-dihydropyridines (DHPs) under blue LED irradiation, as exemplified in a photochemical Giese reaction. Radical generation occurs under mild conditions, does not require the use of exogenous photocatalysts or oxidants, and the Giese reaction is compatible with a range of 4-tert-alkyl-DHPs
PRETREATMENT LIQUID, INK SET, IMAGE RECORDED MATERIAL, SUBSTRATE FOR IMAGE RECORDING, MANUFACTURING METHOD OF SUBSTRATE FOR IMAGE RECORDING, AND IMAGE RECORDING METHOD
申请人:Fujifilm Corporation
公开号:EP3778249A1
公开(公告)日:2021-02-17
Provided are a pretreatment liquid for recording an image on an impermeable base material with an aqueous ink, the pretreatment liquid including an aqueous medium, a resin a having a glass transition temperature of lower than 25°C, and particles of a resin b having a glass transition temperature of 25°C or higher; an ink set; a base material for image recording; an image recorded material; a method of producing a base material for image recording; and an image recording method.
提供了一种用水性油墨在不透水基材上记录图像的预处理液,该预处理液包括水介质、玻璃化转变温度低于 25°C 的树脂 a 和玻璃化转变温度为 25°C 或更高的树脂 b 颗粒;一种油墨组;一种图像记录基材;一种图像记录材料;一种图像记录基材的生产方法;以及一种图像记录方法。
Amphiphilic reactions by means of exceptionally bulky organoaluminum reagents. Rational approach for obtaining unusual equatorial, anti-Cram, and 1,4 selectivity in carbonyl alkylation