申请人:Schmidt Wolfgang
公开号:US20050255258A1
公开(公告)日:2005-11-17
A compound of the formula (I) is described
where:
R
1
is a) H b) a straight-chain or branched alkyl radical having from 1 to 16 carbon atoms or a straight-chain or branched alkenyl radical having from 2 to 16 carbon atoms, in which
b1) one or more nonadjacent and nonterminal CH
2
groups may be replaced by —O—, —C(═O)O—, —O—C(═O)—, —O—C(═O)—O—, —C(═O)— or —Si(CH
3
)
2
— and/or
b2) one CH
2
group may be replaced by —C≡C—, cyclopropane-1,2-diyl, cyclobutane-1,3-diyl, cyclohexane-1,4-diyl or phenylene-1,4-diyl and/or b3) one or more hydrogen atoms may be replaced by F and/or Cl
c) -M
1
-A
1
-R
5
R
2
has the same possible definitions as specified for R
1
, with the exception of H, but independently of the definition of R
1
and R
5
R
5
has the same possible definitions as specified for R
1
, with the exception of -M
1
-A
1
-R
5
, but independently of the definition of R
1
and R
3
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 1,4-phenylene in which one or two hydrogen atoms may be replaced by F, Cl, CN and/or OCF
3
or three hydrogen atoms may be replaced by fluorine, 1,4-cyclohexylene in which one or two hydrogen atoms may be replaced by CH
3
and/or F, 1-cyclohexene-1,4-diyl in which one hydrogen atom may be replaced by CH
3
or F, pyrimidine-2,5-diyl, pyridine-2,5-diyl in which one hydrogen atom may be replaced by F, or 1,3-dioxane-2,5-diyl p, q, rare each independently 0 or 1, i.e. at the value zero, —H is present at the appropriate position instead of —F, with the proviso that: at least one of p, q, r is 1.
描述了一种式子为(I)的化合物,其中:R1为a)H,b)具有1至16个碳原子的直链或支链烷基基团或具有2至16个碳原子的直链或支链烯基基团,在其中b1)一个或多个非相邻和非端部的CH2基团可以被替换为—O—、—C(═O)O—、—O—C(═O)—、—O—C(═O)—O—、—C(═O)—或—Si(CH3)2—和/或b2)一个CH2基团可以被替换为—C≡C—、环丙烷-1,2-二基、环丁烷-1,3-二基、环己烷-1,4-二基或苯-1,4-二基和/或b3)一个或多个氢原子可以被F和/或Cl替换c)-M1-A1-R5R2具有与R1指定的相同可能的定义,除了H之外,但与R1和R5R5定义的独立定义,除了-M1-A1-R5之外,但与R1的定义无关,R3M1为—CO—O—、—O—CO—、—CH2—O—、—O—CH2—、—CF2—O—、—O—CF2—、—CH═CH—、—CF═CF—、—C≡C—、—CH2—CH2—CO—O—、—O—CO—CH2—CH2—、—CH2—CH2—、—CF2—CF2—、—(CH2)4—、—OC(═O)CF═CF—或单键A1为1,4-苯基,其中一个或两个氢原子可以被F、Cl、CN和/或OCF3替换或三个氢原子可以被氟替换,1,4-环己基,其中一个或两个氢原子可以被CH3和/或F替换,1-环己烯-1,4-二基,其中一个氢原子可以被CH3或F替换,嘧啶-2,5-二基,吡啶-2,5-二基,其中一个氢原子可以被F替换,或1,3-二氧杂环戊烷-2,5-二基p、q、r各自独立为0或1,即在值为零时,在适当位置存在—H而不是—F,但须满足:p、q、r中至少有一个为1。