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 Quinoline, 6,7-dimethoxy-4-(4-nitrophenoxy)-
190728-24-6

Quinoline, 6,7-dimethoxy-4-(4-nitrophenoxy)- synthesis

11synthesis methods
100-02-7 Synthesis
4-Nitrophenol

100-02-7
96 suppliers
$11.00/5G

35654-56-9 Synthesis
4-chloro-6,7-dimethoxyquinoline

35654-56-9
368 suppliers
$13.00/1g

Quinoline, 6,7-dimethoxy-4-(4-nitrophenoxy)-

190728-24-6
34 suppliers
inquiry

-

Yield:190728-24-6 89%

Steps:

48 Example 48

Example 48 (Reference Examples) 6,7-Dimethoxy-4-(4-nitrophenoxy)quinoline 4-Chloro-6,7-dimethoxyquinoline (1.84 g) and commercially available 4-nitrophenol (3.42 g) was mixed and stirred at 170° C. for 50 minutes. After cooling to room temperature in air, aqueous sodium hydrogen carbonate was added to the reaction mixture, and the admixture was extracted 3 times with ethyl acetate, and the ethyl acetate layer was washed with brine and then dried with anhydrous sodium sulfate. The solvent was removed by reduced-pressure distillation, and the resulting residue was purified by column chromatography on silica gel eluding with chloroform/methanol to obtain 4.54 g of the title compound (yield: 89%). 1 H-NMR (CDCl3, 500 MHz): δ 4.01 (s, 3H), 4.06 (s, 3H), 6.69 (d, J=4.9 Hz, 1H), 7.27 (d, J=9.1 Hz, 2H), 7.37 (s, 1H), 7.47 (s, 1H), 8.32 (d, J=9.1 Hz, 2H), 8.62 (d, J=4.9 Hz, 1H) Mass spectrometry data (FD-MS, m/z): 326 (M+)

References:

US6143764,2000,A

Quinoline, 6,7-dimethoxy-4-(4-nitrophenoxy)- Related Search:

历史| 清新县| 长海县| 临沧市| 贵溪市| 南城县| 婺源县| 许昌市| 新邵县| 禹城市| 龙南县| 嵊州市| 基隆市| 台湾省| 措勤县| 库尔勒市| 云和县| 昔阳县| 都匀市| 长兴县| 伊吾县| 刚察县| 诏安县| 广宗县| 招远市| 和政县| 砀山县| 梁平县| 龙游县| 高唐县| 长寿区| 昂仁县| 伊金霍洛旗| 蒲城县| 松桃| 丰镇市| 开封县| 驻马店市| 伊吾县| 西城区| 霍邱县|