Method for preparing halosily carbamates and isocyanates...

Details Method for preparing halosily carbamates and isocyanates... Method for preparing halosily carbamates and isocyanates...

C - Chemistry, Metallurgy

07

C

260/456.3

C07C 119/042 (1980.01)

Patent

CA 1108174

10,817-C-1 A METHOD FOR PREPARING HALOSILYL CARBAMATES AND ISOCYANAIES DERIVED THEREFROM ABSTRACT OF THE DISCLOSURE Isocyanates are prepared directly from amines in a facile process which involves the reaction with halosilyl compounds to form novel halosilyl carbamates. The iso- cyanate may then be derived from the carbamate intermediate by gentle heating. In accordance with one aspect of the invention, isocyanates can be formed which contain a further reactive functional moiety, such as hydroxyl, amino, mercapto, nitro, sulfonamido, amido, carboxyl or the like. SPECIFICATION

359575

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