A novel polyamine derivative, or polyol derivative, having a piperidylaminotriazine skeleton; salts of such compounds; a process for producing them; an organic material stabilizer comprising any of such compounds; a method of stabilizing an organic material; and a stabilized organic material. Compounds of the general formula: (1) (wherein X is N(R
4
) or an oxygen atom; R
1
is an n-valent hydrocarbon group; R
2
is a hydrogen atom or an alkyl; R
3
is a hydrogen atom, an alkyl, an alkoxy or an acyl; R
4
is a hydrogen atom or an alkyl; and n is an integer of 3 to 16) are effective in the stabilization of an organic material against deterioration by light, heat, oxygen, ozone and electromagnetic waves, such as X-rays and γ-rays.
A novel polyamine derivative, or polyol derivative, having a piperidylaminotriazine skeleton; salts of such compounds; a process for producing them; an organic material stabilizer comprising any of such compounds; a method of stabilizing an organic material; and a stabilized organinc material. Compounds of the general formula: (1) (wherein X is N(R
4
) or an oxygen atom; R
1
is an n-valent hydrocarbon group; R
2
is an hydrogen atom or an alkyl; R
3
is a hydrogen atom, an alkyl, an alkoxy or an acyl; R
4
is a hydrogen atom or an alkyl; and n is an integer of 3 to 16) are effective in the stabilization of an organic material against deterioration by light, heat, oxygen, ozone and electromagnetic waves, such as X-rays and γ-rays.
An eco-compatible pathway to new hydrotropes from tetraols
作者:Aurélien Herbinski、Estelle Métay、Eric Da Silva、Estelle Illous、Jean-Marie Aubry、Marc Lemaire
DOI:10.1039/c7gc02990j
日期:——
hydrogenolysis. Acetalisation, with the corresponding aldehyde, gave rise to 69% to 91% isolated yields of erythritol acetals, and 63% to 79% yields of pentaerythritolacetals. Hydrogenolysis of these acetals was performed resulting in good yields of erythritol (72% to 86%) and pentaerythritol (78% to 83%) derivatives. The physico-chemical analysis of these ethers was realized using DSC and TGA analysis