申请人:IVOCLAR VIVADENT AG
公开号:US20210261578A1
公开(公告)日:2021-08-26
Compounds according to general formula (I)
in which M is Ge or Sn, RAr is
R
1
, R
2
, R
3
, R
4
, R
5
, independently of one another in each case, are —H, —F, —Cl, —OR
6
, —SR
6
, —N(R
6
)
2
, —CF
3
, —CN, —NO
2
, —COOR
6
, —CONHR
6
, a branched, cyclic or preferably linear C
1-20
alkyl, C
2-20
alkenyl, C
1-20
alkyloxy or a C
2-20
alkenoxy radical, which can be interrupted one or more times by O, S or —NR
6
— and substituted by one or more polymerizable groups and/or radicals R
6
, R
6
is H, a branched, cyclic or preferably linear C
1-20
alkyl or C
2-20
alkenyl radical, R
7
is a chemical bond, an n-valent aromatic radical or a branched, cyclic or preferably linear C
1-20
alkylene radical, which can be interrupted one or more times by O, S or —NR
6
— and substituted by one or more polymerizable groups, ═O and/or radicals R
6
, n is 2 or 3 and m is 0 or 1. The compounds are particularly suitable as photoinitiators for radical polymerization and in particular for the production of dental materials.
根据通式(I)中的化合物,其中M为Ge或Sn,RAr为R1、R2、R3、R4、R5,在每种情况下独立于彼此的基团分别为—H、—F、—Cl、—OR6、—SR6、—N(R6)2、—CF3、—CN、—NO2、—COOR6、—CONHR6、一个支链、环状或优选线性的C1-20烷基、C2-20烯基、C1-20烷氧基或一个C2-20烯氧基基团,可以被O、S或—NR6—中断一次或多次,并且被一个或多个可聚合基团和/或基团R6取代,R6为H、一个支链、环状或优选线性的C1-20烷基或C2-20烯基基团,R7为化学键、n-价芳香基团或一个支链、环状或优选线性的C1-20烷基烯基基团,可以被O、S或—NR6—中断一次或多次,并且被一个或多个可聚合基团、═O和/或基团R6取代,n为2或3,m为0或1。这些化合物特别适用于自由基聚合引发剂,特别适用于牙科材料的生产。