天堂网亚洲,天天操天天搞,91视频高清,菠萝蜜视频在线观看入口,美女视频性感美女视频,95丝袜美女视频国产,超高清美女视频图片

Welcome to chemicalbook!
Chinese English Japanese Germany Korea
400-158-6606
Try our best to find the right business for you.
Do not miss inquiry messages Please log in to view all inquiry messages.

Welcome back!

ChemicalBook CAS DataBase List 3-(4-FLUOROPHENYL)BENZOIC ACID
10540-39-3

3-(4-FLUOROPHENYL)BENZOIC ACID synthesis

7synthesis methods
-

Yield: 86%

Reaction Conditions:

with tetrabutylammomium bromide;sodium carbonate in water at 100; for 5 h;Suzuki Coupling;

Steps:

3.D1 Step D1
General procedure: The required aryl bromide, 3-carboxyphenylboronic acid (1.05 eq), Na2CO3 (2 eq), TBAB (0.01 eq) are given in a screw-cap reactor. H2O (2 mL/mmol aryl bromide) and 10 mM Pd(EDTA) solution (0.3 mL/mmol aryl bromide) are added, the reactor is closed tightly and heated to 100°C under stirring. After 5 hours the mixture is cooled to room temperature, diluted with AcOEt (10 mL/mmol aryl bromide) and extracted with 5 % NaHCO3 (4x10 mL/mmol aryl bromide). The pooled basic extracts are acidified to pH 3 by dropwise addition of concentrated HCI under stirring, then extracted with AcOEt (3x 10 mL/mmol aryl bromide). The pooled organic extracts are washed with H2O (10 mL/mmol aryl bromide) and brine (10 mL/mmol aryl bromide), dried over Na2SO4, filtered and evaporated to dryness under reduced pressure. If necessary, the crude product is purified by preparative-HPLC.

References:

DSM IP ASSETS B.V.;BOUDON, Stéphanie;GEOTTI-BIANCHINI, Piero;HEIDL, Marc;JACKSON, Eileen;SCHLIFKE-POSCHALKO, Alexander WO2017/12890, 2017, A1 Location in patent:Page/Page column 22; 24

3-(4-FLUOROPHENYL)BENZOIC ACID Related Search: