Coordination compounds of some metals with N,N′-Bis(m-ethoxycarbonylphenyl)urea
摘要:
N,N'-bis(m-ethoxycarbonylphenyl)urea and its complex compounds with cooper, zinc and cadmium were syntesized. The structure of N,N'-bis(m-ethoxycarbonylphenyl)urea was investigated by XRD method. Ligand coordination process was determined. Some factors affecting the donor ability of the nitrogen and oxygen atoms in ligand molecule were discussed.
o)benzoic acid, GI181771 ((S)-1) has been isotopically labelled with carbon-11 at its urea site using [11C]phosgene in a one-pot two-step process, via the intermediate preparation of an [11C]isocyanate derivative. Optimized conditions for the preparation of (S)-[11C]-1 were the following: (1) Trapping of [11C]phosgene (radiosynthesized from cyclotron-produced [11C]methane via [11C]carbon tetrachloride