Stabilizers based on 1-aza-2,2,6,6 tetramethybicyclo [3.1.0]hexane
申请人:Clariant GmbH
公开号:US05972248A1
公开(公告)日:1999-10-26
The present invention relates to novel stabilizers of the formula (I) ##STR1## in which the substituents have the meaning defined in the description. These novel stabilizers are particularly suitable for stabilizing organic material, such as plastics, oils, paints and coatings, against degradation by light, radiation, heat and oxygen.
The effect of the nature of the substituent at the nitrogen atom on transformations of 3-bromo-2,2,6,6-tetramethyl-4-piperidinone and its 1-hydroxy and 1-oxyl derivatives under conditions of the Favorsky rearrangement
作者:L. A. Krinitskaya
DOI:10.1007/bf02496215
日期:1997.6
3-Bromo-2,2,6,6-tetramethyl-4-oxopiperidine-1-oxyl reacts with NH4OH to give 3-carbamoyl-2,2,5,5-tetramethylpyrrolidine-1-oxyl, a product of the Favorsky rearrangement. 3-Bromo-2,2,6,6-tetramethyl-4-piperidinone is transformed under these conditions into a bicyclic amino ketone, while its 1-hydroxy derivative affords acyclic nitrosoenone.
KRINITSKAYA L. A., IZV. AN CCCP. CEP. XIM.,(1987) N 7, 1685
作者:KRINITSKAYA L. A.
DOI:——
日期:——
JPH10158266A
申请人:——
公开号:JPH10158266A
公开(公告)日:1998-06-16
Synthesis and properties of bicyclic aziridines, derivatives of triacetoneamine
作者:L. A. Krinitskaya
DOI:10.1007/s11172-007-0083-3
日期:2007.3
Bicyclic aziridines, derivatives of 2,2,6,6-tetramethyl-4-piperidone (triacetoneamine), are synthesized, which by acids treatment undergo the N—C(1) or N—C(2) bonds cleavage to form the corresponding pyrrolines, pyrrolidines, and piperidines.