The invention relates to bimesogenic compounds of formula I
wherein R
11
, R
12
, MG
11
, MG
12
, X
11
, X
12
and Sp
1
have the meaning given in claim
1
, to the use of bimesogenic compounds of formula I in liquid crystal media and particular to flexoelectric liquid crystal devices comprising a liquid crystal medium according to the present invention.
The invention relates to bimesogenic compounds of formula I
wherein R
11
, R
12
, MG
11
, MG
12
, X
11
, X
12
and Sp
1
have the meaning given in claim
1
, to the use of bimesogenic compounds of formula I in liquid crystal media and particular to flexoelectric liquid crystal devices comprising a liquid crystal medium according to the present invention.
Disclosed are compounds of formula I
the use of compounds of formula I in liquid crystal media and in particular to flexoelectric liquid crystal devices containing the liquid crystal media.
mediate ester synthesis from carboxyl acids and alcohols/phenols. Carboxylic acids are transformed to trifluoromethyl ester and acyl fluoride activated species that interact with each other. The broad substrate scope and late-stage application of this method are demonstrated. This study opens up new opportunities to develop interesting reactionsusing Cu(III)–CF3 compounds without transferring a CF3
Cu( III )–CF 3化合物在本文中被报道为新型偶联剂,可介导羧酸和醇/酚的酯合成。羧酸转化为三氟甲酯和酰基氟活化物质,它们相互作用。证明了该方法的广泛底物范围和后期应用。这项研究开辟了新的机会,可以使用 Cu( III )–CF 3化合物开发有趣的反应,而无需将 CF 3基团转移到产品中。