Croatica Chemica Acta, Vol. 33 No. 3, 1961.
Short communication, Note
A Note on the Synthesis of 1-Naphthyl-14 C-Isocyanate and Ethyl B-[3-(1' -naphthyl)-ureido-2-14CJ Butyrate
D. Keglević
; Tracer Laboratory, Institute »Ruder Boskovic«, Zagreb, Croatia, Yugoslavia
B. Leonhard
; Tracer Laboratory, Institute »Ruder Boskovic«, Zagreb, Croatia, Yugoslavia
Abstract
The most converuiem way ,of oib.tailni.ing the 1tJitle ureidoester1 (II) semed to be the action of 1-naphthyl- 14 C -isocyanate (I) on ethyl ~-aminobutyrate. A searchof the literature revealed that the preparation of 1- or 2-naphthyl- 14C-isocyanate was not described. As 1-naphthoic- 14 C-acid was synthesized2 in a good yield by one step reaction from Ba 14C03 and 1-bromonaphthalene, we investigated the optimal conditions under which I could be obtained from this acid. In inactive runs 1-naphthoyl chloride was treated with sodium azide by the wet and the dry method3 respectively.
Keywords
Hrčak ID:
208437
URI
Publication date:
15.1.1962.
Visits: 735 *