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 ASISCHEM A93504
482308-06-5

ASISCHEM A93504 synthesis

3synthesis methods
-

Yield:482308-06-5 85%

Reaction Conditions:

with iron(0);ammonia hydrochloride in ethanol;lithium hydroxide monohydrate at 85; for 3 h;

Steps:

Synthesis of 3-methoxy-4-morpholinoaniline (02)

To a stirred solution of 4-(2-methoxy-4-nitrophenyl) morpholine (01) (8 g, 33.5 mmol, 1 eq) in Ethanol ThO (2: 1 ) (120 mL), was added NH4CI (8.93 g, 167 mmol, 5 eq), Fe powder (9.32 g, 167 mmol, 5 eq). The reaction mixture was stirred at 85°C for 3h. After completion of reaction by TLC, the reaction mixture was filtered through Celite pad and washed with EtOAc (200 mL). The filtrate was washed with brine (50 mL), dried over sodium sulfate and concentrated under reduced pressure to afford 3-methoxy-4-morpholinoaniline (02) (6 g, yield: 85%) as brown solid. TLC system MeOH:DCM{ 10:90), Rf value:0.2; LCMS (m/z): 209.2 (M+H)+;’HNMR (400 MHz, DMSO-r) d 6.60 (d, J= 8.4 Hz, 1H), 6.23 (d, J= 2.4 Hz, 1H), 6.07 (dd, J= 2.4 Hz, 8.0 Hz, 1H), 4.72 (s, 2H), 3.68 (s, 3H), 3.66 (t, J= 4.8 Hz, 4H), 2.77 (t, J = 4.8 Hz, 4H).

References:

WO2020/190912,2020,A1 Location in patent:Paragraph 00338-00339

ASISCHEM A93504 Related Search:

堆龙德庆县| 永登县| 迭部县| 汶川县| 仁布县| 台中市| 温宿县| 二连浩特市| 布尔津县| 贵阳市| 常州市| 福安市| 阿拉尔市| 休宁县| 宣威市| 栾城县| 广元市| 达尔| 金昌市| 新河县| 北京市| 自治县| 南投县| 宾阳县| 新宁县| 民勤县| 襄垣县| 云林县| 卫辉市| 化德县| 英吉沙县| 西贡区| 余江县| 伊通| 冕宁县| 耿马| 长岛县| 中卫市| 南充市| 长治县| 黑龙江省|