通过将 CO 2环加成到环氧化物来合成环状碳酸酯是一种方便的非还原策略来稳定二氧化碳。双相化学是一种新兴且方便的催化反应方法;水构成反应的不同层之一的过程导致反应速率显着提高和/或允许通过相分离容易地回收催化剂。然而,这种方法对于目标环加成反应仍然非常罕见。在此,我们展示了专门设计的水溶性有机催化剂可用于有效地从 CO 2合成环状碳酸酯和广泛的环氧化物通过作用于水和周围有机层之间的界面(即,“水周围”双相系统),并且在反应结束时很容易作为水溶液回收并原样重复使用。重要的是,向水层中添加简单的无机盐以通常与其盐析潜力相关的方式加速催化环加成反应。利用这种效应来提高反应速率,并通过使用简单的海水作为水层来促进具有挑战性的生物基环氧化脂肪酸酯的碳酸化。采用控制实验和 DFT 计算来深入了解在含有催化剂的小水滴表面和连续环氧化物相之间的界面上以非均相方式发生的催化过程。
通过将 CO 2环加成到环氧化物来合成环状碳酸酯是一种方便的非还原策略来稳定二氧化碳。双相化学是一种新兴且方便的催化反应方法;水构成反应的不同层之一的过程导致反应速率显着提高和/或允许通过相分离容易地回收催化剂。然而,这种方法对于目标环加成反应仍然非常罕见。在此,我们展示了专门设计的水溶性有机催化剂可用于有效地从 CO 2合成环状碳酸酯和广泛的环氧化物通过作用于水和周围有机层之间的界面(即,“水周围”双相系统),并且在反应结束时很容易作为水溶液回收并原样重复使用。重要的是,向水层中添加简单的无机盐以通常与其盐析潜力相关的方式加速催化环加成反应。利用这种效应来提高反应速率,并通过使用简单的海水作为水层来促进具有挑战性的生物基环氧化脂肪酸酯的碳酸化。采用控制实验和 DFT 计算来深入了解在含有催化剂的小水滴表面和连续环氧化物相之间的界面上以非均相方式发生的催化过程。
[EN] RECORDING MEDIUM AND SILANE COUPLING AGENT<br/>[FR] SUPPORT D'ENREGISTREMENT ET AGENT DE COUPLAGE AU SILANE
申请人:CANON KK
公开号:WO2016125459A1
公开(公告)日:2016-08-11
To provide a recording medium in which the ink absorbability and the color development properties of an image to be obtained are high and in which cracking in an ink receiving layer is sufficiently suppressed. A recording medium contains a base material and an ink receiving layer containing inorganic particles and a binder, in which the inorganic particles have an organosilicon structure having a quaternary ammonium group, an imino group or a substituted imino group, and a hydroxyl group.
To provide a recording medium in which the ink absorbability and the color development properties of an image to be obtained are high and in which cracking in an ink receiving layer is sufficiently suppressed.
A recording medium contains a base material and an ink receiving layer containing inorganic particles and a binder, in which the inorganic particles have an organosilicon structure having a quaternary ammonium group, an imino group or a substituted imino group, and a hydroxyl group.
To provide a recording medium in which the ink absorbability and the color development properties of an image to be obtained are high and in which cracking in an ink receiving layer is sufficiently suppressed.
A recording medium contains a base material and an ink receiving layer containing inorganic particles and a binder, in which the inorganic particles have an organosilicon structure having a quaternary ammonium group, an imino group or a substituted imino group, and a hydroxyl group.
US4332935A
申请人:——
公开号:US4332935A
公开(公告)日:1982-06-01
Cycloaddition of CO<sub>2</sub> to epoxides “around water”: a strategy to apply and recycle efficient water-soluble bio-based organocatalysts in biphasic media
The synthesis of cyclic carbonates by cycloaddition of CO2 to epoxides is a convenient non-reductive strategy to valorize carbon dioxide. Biphasic chemistry is an emerging and convenient approach to carry out catalytic reactions; processes where water constitutes one of the distinct layers of the reaction have led to significant enhancements of reaction rates and/or allowed the facile recovery of the
通过将 CO 2环加成到环氧化物来合成环状碳酸酯是一种方便的非还原策略来稳定二氧化碳。双相化学是一种新兴且方便的催化反应方法;水构成反应的不同层之一的过程导致反应速率显着提高和/或允许通过相分离容易地回收催化剂。然而,这种方法对于目标环加成反应仍然非常罕见。在此,我们展示了专门设计的水溶性有机催化剂可用于有效地从 CO 2合成环状碳酸酯和广泛的环氧化物通过作用于水和周围有机层之间的界面(即,“水周围”双相系统),并且在反应结束时很容易作为水溶液回收并原样重复使用。重要的是,向水层中添加简单的无机盐以通常与其盐析潜力相关的方式加速催化环加成反应。利用这种效应来提高反应速率,并通过使用简单的海水作为水层来促进具有挑战性的生物基环氧化脂肪酸酯的碳酸化。采用控制实验和 DFT 计算来深入了解在含有催化剂的小水滴表面和连续环氧化物相之间的界面上以非均相方式发生的催化过程。