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Some Articles about the Study of Trichloroisocyanuric Acid (TCCA) Recently

Trichloroisocyanuric acid (TCCA) was proved to be an excellent ligand. Besides, copper (Cu) was added and proved to be a favorable synergistic metal so that the content of Au in the catalyst could be further reduced to 0.2 wt% (weight percentage). Experimentally, the best ratio of each component was optimized to be Au : Cu : TCCA = 1 : 5 : 20. The prepared 0.2 wt% Au catalyst had a conversion of over 98% with over 99% selectivity during 24 h operation under the temperature of 180 °C and GHSV (gas hourly space velocity) of 90 h-1. Then, an over 6800 h pilot trial has been carried out to demonstrate its promising capability for practical applications. Moreover, several characterization methods accompanied by DFT calculations were used, and it was proved that the high stability after TCCA introduction may come from its high ability to prevent high valence Au from being reduced and to inhibit the coking effect and that the electron interaction between Au and Cu could facilitate the dispersion of Au and lead to higher catalytic activity.High reaction stability of an Au–Cu bimetallic carbon-based catalyst in the acetylene hydrochlorination process: the research and development of a non-mercury catalyst for China's PVC (polyvinyl chloride) industry is extremely urgent. Gold (Au) loaded on activated charcoal (AC), as a potential novel catalyst with high activity, has been regarded as an ideal substitute for mercury. However, the deactivation of a gold catalyst caused by acetylene for long-term industrial applications is a big challenge. In this work, a new methodology of ligand screening and design for gold catalysis was constructed. 
Using trichloroisocyanuric acid(TCCA) as an oxidant: The ester group is one of the most significant and abundant functional group in organic chemistry and can be found in many natural products, polymers, pharmaceuticals and synthetic intermediates.1 Traditionally, esters are prepared by a nucleophilic substitution between carboxylic acid derivatives (carboxylic halides, anhydrides and active esters) and alcohols.2 A recent alternative approach is the oxidative esterification of aldehydes with alcohols, but the required aldehydes are normally obtained by selective oxidation of alcohols.3 Alcohols are easily available and stable compounds, and are contained in many naturally occurring organic molecules. For these reasons, the direct conversion of alcohols to esters is a highlight of green and sustainable chemistry.
One-pot sequential acid- and base-mediated reactions: α-Chloroketones – obtained by the atom-economical chlorination of ketones with trichloroisocyanuric acid (TCCA) in the presence of p-TSA under ball-milling conditions  were set up for a sequential base-mediated condensation reaction with thiourea/thiosemicarbazides, o-phenylenediamine and salicylaldehyde to afford 2-aminothiazoles, 2-hydrazinylthiazoles, quinoxalines and benzoylbenzofurans,respectively, in respectable yields. The viability of one-pot sequential acid- and base-mediated reactions in the solid state under ball-milling conditions is thus demonstrated.