电催化已被认为是有机金属催化的有力策略,但是电催化CH活化仅限于强N配位的导向基团。给出了通过弱O配位进行电催化C-H活化的第一个例子,其中通用的羧酸钌(II)催化剂可在没有金属氧化剂的情况下实现炔烃环化的电氧化C / H / OH功能化。从而利用可持续的电力作为唯一的氧化剂。机械学的见解为简便的有机金属CH钌钌化和关键钌(0)中间体的有效电化学再氧化提供了有力的支持。
Titanium superoxide – a stable recyclable heterogeneous catalyst for oxidative esterification of aldehydes with alkylarenes or alcohols using TBHP as an oxidant
作者:Soumen Dey、Sunita K. Gadakh、A. Sudalai
DOI:10.1039/c5ob01586c
日期:——
A single step catalytic approach for the synthesis of esters from aldehydes using a recyclable heterogeneous catalyst is described.
Palladium-Catalyzed Carbonylative Synthesis of Benzyl Benzoates Employing Benzyl Formates as Both CO Surrogates and Benzyl Alcohol Sources
作者:Ming Lai、Xinxin Qi、Xiao-Feng Wu
DOI:10.1002/ejoc.201900700
日期:2019.6.23
An efficient and convenient palladium‐catalyzed carbonylation reaction for the synthesis of benzyl benzoates from aryl bromides has been developed. Benzyl formates have been explored as a new type of efficient and useful CO sources. A wide range of benzyl benzoates were obtained in good to excellent yields.
mediate ester synthesis from carboxyl acids and alcohols/phenols. Carboxylic acids are transformed to trifluoromethyl ester and acyl fluoride activated species that interact with each other. The broad substrate scope and late-stage application of this method are demonstrated. This study opens up new opportunities to develop interesting reactionsusing Cu(III)–CF3 compounds without transferring a CF3
Cu( III )–CF 3化合物在本文中被报道为新型偶联剂,可介导羧酸和醇/酚的酯合成。羧酸转化为三氟甲酯和酰基氟活化物质,它们相互作用。证明了该方法的广泛底物范围和后期应用。这项研究开辟了新的机会,可以使用 Cu( III )–CF 3化合物开发有趣的反应,而无需将 CF 3基团转移到产品中。
P-doped conjugated small molecular electrolyte and organic electronic devices using the same
申请人:GWANGJU INSTITUTE OF SCIENCE AND TECHNOLOGY
公开号:US10873031B2
公开(公告)日:2020-12-22
Disclosed are a p-doped conjugated small molecular electrolyte containing a compound represented by Formula 1 and an organic electronic device using the same as a hole transport material.
[Ar2—Ar1—Ar2]+
wherein, in Formula 1, Ar1 is any one selected from the following Compound Group 1, Ar2 is any one selected from the following Compound Group 2a or the following Compound Group 2b, and superscript “+” in the square bracket indicates an oxidized portion of a main chain of the small molecule.
nickel-catalyzed carbonylation of arylboronic acids and alkylarenes to benzyl benzoates. The reaction was well tolerated by various functional groups, resulting in the formation of wide range of functional groupsubstitutedesters in moderate to good yields. Furthermore, the reaction also allowed for the synthesis of O-labeled esters.