눈에 묻으면 몇 분간 물로 조심해서 씻으시오. 가능하면 콘택트렌즈를 제거하시오. 계속 씻으시오.
P405
밀봉하여 저장하시오.
NFPA 704
0
2
0
4-(2,2,2-트리플루오로에톡시)페닐붕소산 C화학적 특성, 용도, 생산
용도
4-(2,2,2-Trifluoroethoxy)phenylboronic acid can be used as organic synthesis intermediate and pharmaceutical intermediate, mainly used in laboratory research and development process and chemical production process.
Synthesis
2- (2,2,2-trifluoroethoxy) bromobenzene 2558, isopropyl borate 2448 and methylTetrahydrofuran 1.5L was added to the reaction flask, and the reaction system was cooled to -15 ° C. 500 mL of isopropylmagnesium chloride in tetrahydrofuran (2.0 M) was added dropwise to the above reaction system and the internal temperature was controlled to not more than -10 ° C, and the reaction was kept at a low temperature for 1 hour. After completion of the reaction, 500 mL of 6M aqueous hydrochloric acid solution was added to terminate the reaction and the ρH- = 2 ~ 3 was added, and the mixture was thoroughly stirred and the aqueous phase was extracted with methyltetrahydrofuran (1.5 LX 1). The combined organic layers were washed with saturated brine (1.5 LX 2), and the combined organic layers were dried over anhydrous sodium sulfate and concentrated to give the crude product of 2- (2,2,2-trifluoroethoxy) phenylboronic acid. The crude product was recrystallized from 770 mL of isopropanol and water (10: 1 by volume) to give 187 g of 2- (2,2,2-trifluoroethoxy) phenylboronic acid in a molar yield of 85%.