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 2-aminobutyrophenone
2034-40-4

2-aminobutyrophenone synthesis

8synthesis methods
-

Yield:2034-40-4 6 %Chromat. ,551-93-9 67 %Chromat. ,491-35-0 27 %Chromat.

Reaction Conditions:

with sodium hydroxide at 120; for 24 h;

Steps:

Reduction and chain elongation

General procedure: A mixture of 4-nitroacetophenone (0.83 g,5 mmol), NaOH (0.6 g), Pd/MgLaO (0.2 g) and the appropriate alcohol (10 ml)were stirred at 120 C (bath temperature) for 24 h. The mixture was filtered,the solid was washed with MeOH and the filtrate was concentrated in vacuum.The residue was dissolved in Et2O and H2O. Dilute HCl (25%) was added untilpH 1. The two phases were separated and the aqueous phase basified to pH 8by adding NaHCO3. The aqueous phase was extracted with Et2O (2 50 mL).The organic phase was dried over Na2SO4 and concentrated in vacuum. Theproducts were purified by column chromatography

References:

Németh, János;Kiss, árpád;Hell, Zoltán [Tetrahedron Letters,2013,vol. 54,# 45,p. 6094 - 6096]

2-aminobutyrophenone Related Search:

龙陵县| 柞水县| 赣州市| 连平县| 黑水县| 四平市| 玉林市| 开阳县| 同德县| 庆云县| 武穴市| 乾安县| 宁海县| 安溪县| 调兵山市| 望江县| 丰都县| 宣恩县| 台中县| 秦安县| 磐安县| 静乐县| 丹巴县| 封丘县| 富裕县| 当雄县| 闽侯县| 平罗县| 天门市| 宁乡县| 偏关县| 湖南省| 沙湾县| 文成县| 成都市| 昌黎县| 山西省| 迁西县| 大城县| 黄骅市| 青川县|