Process for the preparation of n,n-disubstituted mono- and...

Details Process for the preparation of n,n-disubstituted mono- and... Process for the preparation of n,n-disubstituted mono- and...

C - Chemistry, Metallurgy

07

C

260/468

C07C 269/06 (2006.01) C07C 271/06 (2006.01)

Patent

CA 1292010

PROCESS FOR THE PREPARATION OF N,N-DISUBSTITUTED MONO- AND OLIGOURETHANES ABSTRACT OF THE DISCLOSURE N,N-disubstituted monourethanes and oligourethanes are produced by reacting (a) N-aliphatically and/or N-cycloaliphatically and/or N-araliphatically substituted monourethanes and/or oligourethanes with an alkylating agent in the presence of a solid alkali metal hydroxide. No solvent need be employed but if a solvent is used, that solvent should be an aprotic organic solvent. The alkali metal hydroxide must be used in an equivalent amount. A phase transfer catalyst may optionally be employed. The N,N-disubstituted urethanes obtained by this process are useful in the production of dyes, pharmaceutical products and thermostable synthetic materials.

531862

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