Process for the production of isocyanates

Details Process for the production of isocyanates Process for the production of isocyanates

C - Chemistry, Metallurgy

07

C

260/455, 260/446

C07C 263/16 (2006.01) C07F 7/10 (2006.01) C08G 18/77 (2006.01) C08G 18/78 (2006.01)

Patent

CA 1307285

Mo-2973 LeA 24,784 A PROCESS FOR THE PRODUCTION OF ISOCYANATES ABSTRACT OF THE DISCLOSURE Isocyanates containing ester and/or amide groups are produced by reacting (a) an isocyanato- carboxylic acid chloride with (b) an organic compound containing a silylated alcoholic group and/or silylated phenolic hydroxyl group and/or silylated amino group which compound contains no other group which is reactive with isocyanate and chlorocarbonyl groups under the reaction conditions. The reaction of (a) with (b) is carried out at a temperture of from -20 to 150°C. This process makes it possible to produce the desired isocyanates with a high degree of selectivity. Mo-2973

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