申请人:FERRO CORPORATION
公开号:EP0095834A1
公开(公告)日:1983-12-07
]An acylated, hindered hexahydropyrimidine of the formula
wherein
R1, R2, R3 and R4 may be the same or different independently of each other and are Alkyl having 1 to 6 carbon atoms, when unsubstituted, or alkyl or aryl substituted; R5 and R6 may be the same or different and are hydrogen, or alkyl;
R7 is selected from the group consisting of: alkyl having 1 to 20 carbon atoms, substituted alkyl where the alkyl without substitution has 1 to 20 carbon atoms and where substituents may be up to five lower alkyl groups, arylalkyl, cycloalkyl having 3 to 12 carbon atoms, aryl, aryl substituted with 1 to 3 substituents selected from the group consisting of: lower alkyl, lower alkoxy, and hydroxyl; -OR9, -NHRg, -ACOR10, and-NANHCOR10, wherein H
Rg is unsubstituted or substituted with alkyl, R10 is hydroxyl, lower alkoxy, phenoxy and the group
and
R8 is hydrogen, alkyl, substituted alkyl, arylalkyl, hydroxyl, oxyl and
wherein R11 is unsubstituted or substituted alkyl.
]式中的酰化受阻六氢嘧啶
其中
R1、R2、R3 和 R4 可以相同或不同,彼此独立,并且是具有 1 至 6 个碳原子的烷基(未取代时),或取代的烷基或芳基;R5 和 R6 可以相同或不同,并且是氢或烷基;
R7 选自以下一组:具有 1 至 20 个碳原子的烷基、取代的烷基(其中未取代的烷基具有 1 至 20 个碳原子,且取代基可以是最多 5 个低级烷基)、芳烷基、具有 3 至 12 个碳原子的环烷基、芳基、被 1 至 3 个取代基取代的芳基,取代基可选自以下一组:低级烷基、低级烷氧基和羟基;-OR9、-NHRg、-ACOR10 和-NANHCOR10,其中 H
Rg 是未取代的或被烷基取代的,R10 是羟基、低级烷氧基、苯氧基和基团
和
R8 是氢、烷基、取代烷基、芳烷基、羟基、氧基和基团。
其中 R11 是未取代或取代的烷基。