[EN] COLORANT MULTIMER, COLORED CURABLE COMPOSITION, COLOR FILTER AND METHOD FOR PRODUCING THE SAME, AND SOLID-STATE IMAGE SENSOR, IMAGE DISPLAY DEVICE, LIQUID CRYSTAL DISPLAY DEVICE AND ORGANIC EL DISPLAY WITH THE COLOR FILTER [FR] MULTIMÈRE COLORANT, COMPOSITION DURCISSABLE COLORÉE, FILTRE COLORÉ ET PROCÉDÉ DE FABRICATION DE CEUX-CI, ET DÉTECTEUR D'IMAGES À L'ÉTAT SOLIDE, DISPOSITIF D'AFFICHAGE D'IMAGES, DISPOSITIF D'AFFICHAGE À CRISTAUX LIQUIDES ET DISPOSITIF D'AFFICHAGE ÉLEC
SelectfluorTM: A novel and efficient reagent for the rapid α-thiocyanation of ketones
作者:DEZHEN WU、XIAOJUAN YANG、LIQIANG WU
DOI:10.1007/s12039-012-0270-0
日期:2012.7
The direct α-thiocyanation of ketones with ammonium thiocyanate has been achieved using SelectfluorTM under mild and neutral conditions to produce α-ketothiocyanates, in excellent yields and with high selectivity.
E-mail: wliq1974@sohu.comReceived June 2, 2011, Accepted August 7, 2011Key Words : Thiocyanation, Ketones, Ammonium thiocyanate, Trichloroisocyanuric acid, Synthesisα-Thiocyanation of ketones is one of the most importantreactions in organic synthesis. The thiocyano substitutedcompounds are useful intermediates in the synthesis ofsulfur-containing heterocycles, in which the thiocyanategroup will be
Efficient α-Thiocyanation of Ketones Using Pyridinium Hydrobromide Perbromide
作者:Liqiang Wu、Xiaojuan Yang
DOI:10.1080/10426507.2011.616561
日期:2012.6
Abstract The direct α-thiocyanation of ketones with ammonium thiocyanate has been achieved using pyridinium hydrobromide perbromide under mild and neutral conditions to produce α-ketothiocyanates in excellent yields and with high selectivity. GRAPHICAL ABSTRACT
Direct and Electrophilic Preparation of α-Thiocyanatoketones and Aldehydes Using Thiocyanatotrimethylsilane and Sulfuryl Chloride
作者:Yoo Tanabe、Takuya Makita、Kei Mori
DOI:10.1246/cl.1994.2275
日期:1994.12
The thiocyanato (-SCN) group was directly and regioselectively introduced into the α-position of ketones, aldehydes, and aldols in an electrophilic manner by the combined use of thiocyanatotrimethylsilane and sulfuryl chloride with or without cyclic sec-amine catalysts under mild reaction conditions.
A simple construction for various 2,4-disubstituted thiazoles via palladium(II)-catalyzed C(sp)–C(sp2) and C-N cascade couplingreactions was developed. Various substrates can be tolerated with good yields. And its ligand-free condition demonstrates the practicability of this method.