Synthesis and reactivity of subvalent compounds. Part 13: Reaction of Triethyl orthoformate (cas 122-51-0) with amines and selenium—a convenient one-step three-component synthesis for selenoureas☆
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Add time:09/10/2019 Source:sciencedirect.com
Selenoureas are obtained by a novel three-component condensation reaction from metallic selenium, Triethyl orthoformate (cas 122-51-0) and a primary or secondary amine. The reaction is carried out as solvent-free one pot-procedure at 180–190°C under inert gas with a reaction time of 8 h. The reaction was tested for piperidine, isopropylamine, N,N′-dimethylpropylenediamine (Me-NH-CH2-CH2-CH2-NH-Me) and N,N′-disubstituted ethylenediamines (R-NH-CH2-CH2-NH-R, R=Me, Et, iPr, tBu, Ph).
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