侧向二氟取代酯类液晶的合成  

Synthesis of Liquid Crystals of Laterally Difluorinated Esters

作　　者：侯光明[1] 唐洪[1] 徐寿颐[1] 张兴[1] 

机构地区：[1]清华大学化学系,北京100084

出　　处：《应用化学》2004年第8期826-828,共3页Chinese Journal of Applied Chemistry

基　　金：国家"八六三"计划资助项目

摘　　要：Difluoro-4-alkoxyphenols were prepared from 2,3-difluoro-4-alkoxy bromobenzene with Mg, B(OCH 3) 3 and H 2O 2 at -30 ℃. Three ester liquid crystal compounds were synthesized by their esterification with 4-(trans-4′-alkylohexyl) compounds. The structures of the liquid crystal compounds were confirmed by IR, 1H NMR, MS and elemental analysis and the phase transition temperatures were measured by DSC.Difluoro-4-alkoxyphenols were prepared from 2,3-difluoro-4-alkoxy bromobenzene with Mg, B(OCH 3) 3 and H 2O 2 at -30 ℃. Three ester liquid crystal compounds were synthesized by their esterification with 4-(trans-4′-alkylohexyl) compounds. The structures of the liquid crystal compounds were confirmed by IR, 1H NMR, MS and elemental analysis and the phase transition temperatures were measured by DSC.

关 键 词：氟取代 合成 酯类液晶 

分 类 号：O625.2[理学—有机化学] O753.2[理学—化学]