The preparation and diazotisation of some o- and p-aminophenyl benzoates and benzamides
作者:S. Vickers、D. J. Triggle、D. R. Garrison
DOI:10.1039/j39680000632
日期:——
The preparation and diazotisation of some o- and p-aminophenyl benzoates and benzamides is described. On diazotisation, the 2,6-dimethylbenzoate of o-aminophenol is immediately and quantitatively hydrolysed to 2,6-dimethylbenzoic acid and o-hydroxybenzenediazonium chloride. In contrast, the 2,6-dichlorobenzoate of o-aminophenol diazotises normally as do the 2,6-dimethyl-, 4-methoxy-, and 2,6-dimethoxy-benzoates
Oral care compositions with color changing indicator
申请人:Sabnis W. Ram
公开号:US20060222601A1
公开(公告)日:2006-10-05
The invention describes color changing toothpastes and mouthwashes which contains acid-base indicator(s) for interaction with the oral cavity to provide a color change indicative of treatment time.
这项发明描述了含有酸碱指示剂的变色牙膏和漱口水,用于与口腔相互作用,以提供治疗时间的颜色变化指示。
Metal-free cycloaddition to synthesize naphtho[2,3-d][1,2,3]triazole-4,9-diones
作者:Ping-Fan Chen、Kung-Kai Kuo、Jaya Kishore Vandavasi、Siva Senthil Kumar Boominathan、Chung-Yu Chen、Jeh-Jeng Wang
DOI:10.1039/c5ob01322d
日期:——
A metal-free domino [3 + 2] cycloaddition is reported to construct naphtho[2,3-d][1,2,3]triazole-4,9-dione derivatives and provide an alternative approach to the azide–alkyne cycloadditions.
Personal care compositions with color changing indicator
申请人:Sabnis W. Ram
公开号:US20060222675A1
公开(公告)日:2006-10-05
The invention describes a composition for use in disinfecting a surface for personal use, such as a public restroom facility or telephone. The composition and delivery of the composition provides for the placement of a thin layer of disinfectant which includes a acid-base indicator. The acid-base indicator disappears as the thin layer effects the germicidal activity of the disinfectant. The composition is also rapidly drying, so that the acid-base indicator disappears as well as the disinfecting composition leaving the surface dry. The invention also relates to use of the compositions in a lotion, such as a sunscreen. Use of the acid-base indicator provides a method to visualize where the lotion is applied by color, with the color then later dissipating.