C - Chemistry – Metallurgy – 07 – D
Patent
C - Chemistry, Metallurgy
07
D
400/7077, 260/27
C07D 498/10 (2006.01) C08K 5/35 (2006.01) C09K 15/30 (2006.01)
Patent
CA 1102335
Abstract of the disclosure: New 1-oxa-4,8-diazaspiro[4,5]decanes are prepared by react- ing a dimethyl-dialkyl-piperidone with an .alpha.-hydroxyamide in the presence of a condensation catalyst. The compounds can be used as UV stabilizers for polymers.
284017
Mayer Norbert
Pfahler Gerhard
Wiezer Hartmut
Bereskin & Parr Llp/s.e.n.c.r.l.,s.r.l.
Hoechst Aktiengesellschaft
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