Gold(I)-Catalyzed Intramolecular Hydroarylation of Phenol-Derived Propiolates and Certain Related Ethers as a Route to Selectively Functionalized Coumarins and 2<i>H</i>-Chromenes
作者:Aymeric Cervi、Yen Vo、Christina L. L. Chai、Martin G. Banwell、Ping Lan、Anthony C. Willis
DOI:10.1021/acs.joc.0c02011
日期:2021.1.1
Methods are reported for the efficient assembly of a series of phenol-derived propiolates, including the parent system 56, and their Au(I)-catalyzed cyclization (intramolecular hydroarylation) to give the corresponding coumarins (e.g., 1). Simple syntheses of naturalproducts such as ayapin (144) and scoparone (145) have been realized by such means, and the first of these subject to single-crystal
libraries generated against the tert-butyl phosphonatehapten 2 and the chloromethyl phosphonatehapten 3 with pivaloyloxymethyl-umbelliferone 1 as a fluorogenic substrate led to the isolation of eleven catalyticantibodies with rate accelerations around kcat/ kuncat = 10(3). The antibodies are not inhibited by the product and accept different acyloxymethyl derivatives of acidic phenols as substrates. The
NITROGENOUS COMPOUND AND COLOR CONVERSION FILM COMPRISING SAME
申请人:LG CHEM, LTD.
公开号:US20200331932A1
公开(公告)日:2020-10-22
The present specification relates to a compound containing nitrogen, and a color conversion film, a backlight unit, and a display device, including the same.
本规范涉及一种含氮化合物,以及包括该化合物的颜色转换膜、背光单元和显示装置。
Coaxial Dielectric Spectroscopy as an In-Line Process Analytical Technique for Reaction Monitoring
作者:Desiree M. Dalligos、Michael J. Pilling、Georgios Dimitrakis、Liam T. Ball
DOI:10.1021/acs.oprd.3c00081
日期:2023.6.16
The suitability of broadband dielectric spectroscopy (DS) as a tool for in-line (in situ) reaction monitoring is demonstrated. Using the esterification of 4-nitrophenol as a test-case, we show that multivariate analysis of time-resolved DS data─collected across a wide frequency range with a coaxial dip-probe─allows reaction progress to be measured with both high precision and high accuracy. In addition
Nitrogenous compound and color conversion film comprising same
申请人:LG CHEM, LTD.
公开号:US10961260B2
公开(公告)日:2021-03-30
The present specification relates to a compound containing nitrogen, and a color conversion film, a backlight unit, and a display device, including the same.