in benzene byproducts: AgCl; a soln. of (CH3)3SnCl in benzene was dropped to a suspension of Ag2NCN in benzene, stirred for 1 h, filtration, evaporation in vacuum left an oil; residue treated several times with benzene, filtration, evaporation; elemental analysis;

potassium hydroxide; nitric acid; acetic acid in not given byproducts: urea; Ag-cyanamide reacted with 2 N HNO3; Ag precipitated with KOH; filtrate mixed with acetic acid;

in not given with dild. HCl soln.;

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in dichloromethane T=21°C;