WebAug 23, 2012 · (A) Reddy et. al. reported a simple and efficient one-pot multicomponent condensation of various aromatic aldehydes and acetophenones in the presence of a … WebJul 25, 2005 · The mobile phase was 0.1M potassium dihydrogen phosphate containing 0.01 M TBAHS (pH 6.4)-acetonitrile (75:25, v/v). Separation of the compounds was carried out on a Hypersil C18 column, monitored at 540 nm (excitation wavelength at 380 nm). All four compounds gave linear response as a function of concentration over 0.01-10 microM.

Tetrabutylammonium bisulfate: a new effective catalyst for the ...

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WebTetrabutylammonium hydrogen sulfate, 98%, Thermo Scientific Chemicals 25 g, Plastic bottle Quantity: 25 g 100 g 250 g 1 kg Packaging: Plastic bottle Catalog No. … Webmg, 14.0 mmol), catalyst TBAHS (30 mol%) were taken and heated at 120° C with stirring for 6 h. After completion of the reaction the reaction mixture was cooled to room temperature and diluted with acetone (20 mL). after workup obtain the titled compound 7a (70 mg, 79.7%) as solid. Mp: 183-184 0C. IR (KBr): υ3423, 3057, 2926, WebDescription Tetrabutylammonium hydrogen sulfate, 99%, for HPLC, ACROS Organics, Quantity: 500g, Packaging: Glass Bottle, Colorless to White, Grade: HPLC, Melting Point: 168 deg.C to 172 deg.C, Molecular Weight: 339.53, Percent Purity: 99% This Thermo Scientific Chemicals brand product was originally part of the Acros Organics product … mizkan mount prospect il