一二三四区视频,亚洲少妇熟女色,日本久热无码视频网,欧美国产日韩大尺度,亚洲a视频,久久少妇一区二区,日韩999无码视频,刺激久久久久久久,啊啊啊啊不要啊在线

Welcome to chemicalbook!
Chinese English Japanese Germany Korea
010-86108875
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 IMD-0354
978-62-1

IMD-0354 synthesis

4synthesis methods
5-Chloro-2-hydroxybenzoic acid

321-14-2

3,5-Bis(trifluoromethyl)aniline

328-74-5

IMD-0354

978-62-1

Using 5-chlorosalicylic acid (6.90 g, 40 mmol) and m-bis(trifluoromethyl)aniline (9.16 g, 40 mmol) as raw materials, phosphorus trichloride (1.74 mL, 20 mmol) and toluene (80 mL) were added and the reaction was carried out at reflux for 3 hours under argon protection. After completion of the reaction, the mixture was cooled to room temperature and diluted with ethyl acetate (240 mL). The organic layer was washed sequentially with water and saturated saline, and then dried with anhydrous magnesium sulfate. The solvent was removed by concentration under reduced pressure, and the resulting crude product was purified by silica gel column chromatography (eluent: n-hexane/ethyl acetate=4:1, v/v) to afford N-[3,5-bis(trifluoromethyl)phenyl]-5-chloro-2-hydroxybenzamide (13.12 g, 85.5% yield) as a light yellow solid.1H-NMR (DMSO-d6) δ: 7.05 (1H, d, J= 8.7 Hz), 7.49 (1H, dd, J=8.7, 2.7 Hz), 7.85 (1H, s), 7.87 (1H, d, J=2.7 Hz), 8.45 (2H, s), 10.85 (1H, s), 11.39 (1H, s).

-

Yield: 85.5%

Steps:

51 Example 51
Example 51 N-[3,5-Bis(trifluoromethyl)phenyl]-5-chloro-2-hydroxybenzamide (Comopund No. 50). Using 5-chlorosalicylic acid and 3,5-bis(trifluoromethyl)aniline as the raw materials, the same operation as the example 16 gave the title compound. Yield: 85.5%. 1H-NMR(DMSO-d6): δ 7.05(1H, d, J=8.7Hz), 7.49(1H, dd, J=8.7, 2.7Hz), 7.85(1H, s), 7.87(1H, d, J=2.7Hz), 8.45(2H, s), 10.85(1H, s), 11.39(1H, s).

References:

Institute of Medicinal Molecular Design, Inc. EP1352650, 2003, A1

IMD-0354 Related Search:

田林县| 蕉岭县| 天等县| 奉贤区| 呼和浩特市| 双辽市| 海伦市| 南丹县| 凉山| 宁明县| 正阳县| 吉隆县| 屏边| 博爱县| 三明市| 泰宁县| 西畴县| 鹤峰县| 蒙阴县| 开平市| 定远县| 黄骅市| 长治县| 昆明市| 安溪县| 含山县| 洛浦县| 柘荣县| 阜南县| 江津市| 东港市| 东乡族自治县| 西峡县| 四子王旗| 榆林市| 龙山县| 长武县| 阳原县| 姚安县| 荃湾区| 肃宁县|