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Removal of the BOC group in amino acids can be accomplished with strong acids such as trifluoroacetic acid in dichloromethane, or with HCl in methanol. [2] [3] [4] A complication may be the tendency of the t-butyl cation intermediate to alkylate other nucleophiles; scavengers such as anisole or thioanisole may be used.
The pictogram for harmful substances of the Globally Harmonized System of Classification and Labelling of Chemicals.. The Globally Harmonized System of Classification and Labelling of Chemicals (GHS) is an internationally agreed-upon standard managed by the United Nations that was set up to replace the assortment of hazardous material classification and labelling schemes previously used around ...
Glycine methyl ester hydrochloride can be prepared by treatment of glycine with 2 equivalents of trimethylsilyl chloride, followed by the addition of methanol. [2] [3]Upon treatment with base, the salt converts to glycine methyl ester.
Trichloroisocyanuric acid is an organic compound with the formula (CONCl) 3.It is used as an industrial disinfectant, bleaching agent and a reagent in organic synthesis. [1] [2] [3] This white crystalline powder, which has a strong "chlorine odour," is sometimes sold in tablet or granule form for domestic and industrial use.
CH 2 =CH 2 + Cl 2 → ClCH 2 CH 2 Cl. When heated to around 400 °C with additional chlorine, 1,2-dichloroethane is converted to trichloroethylene: ClCH 2 CH 2 Cl + 2 Cl 2 → ClCH=CCl 2 + 3 HCl. This reaction can be catalyzed by a variety of substances. The most commonly used catalyst is a mixture of potassium chloride and aluminum chloride.
1.328 at 20 °C Dielectric constant, ε r: 32.66 at 20 °C Magnetic susceptibility [1] 5.3×10 −7 cm 3 ·g −1: Surface tension: 22.5 dyn/cm at 20 °C Viscosity [2] 0.808 mPa·s at 0 °C 0.690 mPa·s at 10 °C 0.593 mPa·s at 20 °C 0.449 mPa·s at 40 °C 0.349 mPa·s at 60 °C