申请人:Schmidt Wolfgang
公开号:US20050274929A1
公开(公告)日:2005-12-15
Concerning the compound of the formula (I)
R
1
, R
3
are each independently, for example, H
R
2
, R
4
are each independently, for example, H
X
1
, X
2
are each independently H or F
M
1
is —CO—O—, —O—CO—, —CH
2
—O—, —O—CH
2
—, —CF
2
—O—, —O—CF
2
—, —CH═CH—, —CF═CF—, —C≡C—, —CH
2
—CH
2
—CO—O—, —O—CO—CH
2
—CH
2
—, —CH
2
—CH
2
—, —CF
2
—CF
2
—, —(CH
2
)
4
—, —OC(═O)CF═CF— or a single bond
A
1
is, for example, 1,4-phenylene, and
R
5
has the same possible definitions as specified for R
2
and R
4
, with the exception of -M
1
-A
1
-R
5
, but independently of the particular definitions of R
2
and R
4
with the following provisos:
1) at least one of X
1
, X
2
has to be F
2) R
1
, R
2
, R
3
and R
4
must not at the same time be H
3) at most two of R
1
, R
2
, R
3
and R
4
may be c).
关于
化学式(I)的化合物,R1、R3可以分别是HR2,R4可以分别是HX1,X2可以是H或
FM1,其中
FM1是—CO—O—、—O—CO—、—
CH2—O—、—O— —、—
CF2—O—、—O—
CF2—、—CH═CH—、—CF═CF—、—C≡C—、— — —CO—O—、—O—CO— — —、— — —、—
CF2—
CF2—、—( )4—、—OC(═O)CF═CF—或单键,A1可以是1,4-苯撑基,R5具有与R2和R4指定的相同可能定义,但-M1-A1-R5除外,但与R2和R4的特定定义无关,具有以下规定:1)X1、X2中至少有一个为F;2)R1、R2、R3和R4不能同时为H;3)R1、R2、R3和R4中最多有两个可以是c。