CAS: 70624-18-9; 1,6-Hexanediamine, N1,N6-Bis(2,2,6,6-Tetramethyl-4-Piperidinyl)-, Polymer With 2,4,6-Trichloro-1,3,5-Triazine, Reaction Products With 2,4,4-Trimethyl-2-Pentanamine

专利信息

专利号:US-6995291-B2
优先权日:2002-01-29
标 题:Process for the oxidation of unsaturated alcohols
发明人：WALTHER ERIC
权利人:FIRMENICH & CIE
摘要:The present invention relates to the field of organic synthesis and more precisely to a process for the synthesis of an unsaturated aldehyde or ketone by oxidation of the corresponding alcohol. The oxidation is performed by a hypochlorite salt and a catalytic amount of a N-(2,2,6,6-tetraalkyl-4-piperidinyl-N-oxyl)-2-amino-1,3,5-triazine compound, preferably a N-oxyl derivative of one of the polymers known under the trademark Chimassorb® 944 or 2020.

专利号:CN-118371238-A
优先权日:2024-04-17
标 题:A solid acid catalyst for catalytic synthesis of triacetoneamine and preparation method thereof

专利号:CN-118356970-A
优先权日:2024-04-17
标 题:A catalyst for fixed bed synthesis of triacetoneamine and preparation method thereof

专利号:US-4722806-A
优先权日:1982-02-19
标 题:Alkylated polyalkylenepolyamines, substituted oxo-piperazinyl-triazines and UV light stabilized compositions
发明人：LAI JOHN T; SON PYONG N
权利人:GOODRICH CO B F
摘要:A branched chain polyalkylenepolyamine ('PAPA') amine having plural amine groups including a secondary amine group intermediate terminal primary amine groups and having at least two carbon atoms between each amine group, is reductively alkylated with a ketone to provide a PAPA alkylated only at an unhindered primary amine group. A preselected degree of steric hindrance at amine groups near each end of the chain enables cyclization by the 'ketoform synthesis' by reaction with a ketone in such a manner as to form a polysubstituted piperazinone ('PSP') ring which includes N atoms of proximate primary and secondary amine groups of the alkylated PAPA. The PSP so formed may then be reacted with a reactive triazine ring so that a PSP substituent is linked to the triazine ring through a single N atom and at least two C atoms, to form a 2-oxo-piperazinyl-triazine ('PIP-T'). Oligomers of the PIP-T may be prepared. The PIP-T compounds are excellent stabilizers against ultraviolet (uv) light degradation in light-sensitive synthetic resinous materials. In combination with particular hindered phenols PIP-T compounds are found to provide better antioxidant properties than that obtained as the theoretical additive effect of the PIP-T and the hindered phenol, separately.