Original scientific paper

Diacetamides. II. Syntheses and Properties of Some N,N-Diacylamino Esters

A . Kornhauser ; Tracer Laboratory, Institute »Ruder Boskovic«, Zagreb, Croatia, Yugoslavia
D. Keglević ; Tracer Laboratory, Institute »Ruder Boskovic«, Zagreb, Croatia, Yugoslavia
O. Hadžija ; Tracer Laboratory, Institute »Ruder Boskovic«, Zagreb, Croatia, Yugoslavia

Abstract

By using the 14 C-tracer technique it was established that the
carbon dioxid e evolved in the reaction of ~ -ureido ester I with
acetic anhydride originates from the carbonyl of the ureido group.
N,N-Diacylamino esters and N-acylamino esters were also obtained
from a -ureido ester II and acetic anhydride, as well as from propionic
acid anhydri de and ~-ureido ester I. In addition N,N-dipropionyla
mino ester VII and N-propionylamino ester VIII were synthesized
from the corresponding ~ - am ino ester and N - carbony 1
ester, respectively. It was shown that the conversion of N, J\· -diacylamino estern into the monoacylamino esters occurs readily if small amounts of acet ic and propionic acid, respectively, were present i n the boiling anhydride. Reduction of N,N-diacetylamino ester II w ith
lithium aluminium hydride gave the dialkylamino alcohol XII.

Keywords

Hrčak ID:

208396

URI

https://hrcak.srce.hr/208396

Publication date:

25.11.1962.

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