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 5-Methoxyindole
1006-94-6

5-Methoxyindole synthesis

14synthesis methods
The synthesis of 5-methoxyindole from 5-methoxy-2-oxindole: Conversion of 5-methoxy-2-oxindole to 5-methoxyindole was accomplishedby the chlorination of 5-methoxy-2-oxindole with triphenylphosphine-carbontetrachloride in acetonitrile followed by the catalytic reduction of a chlorine atom in 66% total yield.
-

Yield:1006-94-6 99%

Reaction Conditions:

with water;1,8-diazabicyclo[5.4.0]undec-7-ene in tetrahydrofuran; for 18 h;Reflux;

Steps:

4.3. General procedures for the deprotection of N-pivaloylindoles

General procedure: Method C: DBU (4 equiv) and water (2 equiv) was added to a solution of 1-pivaloyl derivatives (1 equiv) in THF (3 mL×mmol) and was stirred to reflux until the disappearance of the starting indole. The reaction mixture was eluyed with EtOAc (10 mL) and was washed with a saturated aqueous NH4Cl solution (4 mL×mmol). The aqueous layer was extracted with EtOAc (2×15 mL). The combined organic layers were dried over Na2SO4 and evaporated to afford the corresponding unprotected compound.

References:

Ruiz, Míriam;Sánchez, J. Domingo;López-Alvarado, Pilar;Menéndez, J. Carlos [Tetrahedron,2012,vol. 68,# 2,p. 705 - 710] Location in patent:experimental part

5-Methoxyindole Related Search:

师宗县| 靖宇县| 专栏| 武隆县| 桐城市| 香河县| 昌乐县| 灵寿县| 广宗县| 突泉县| 东源县| 静乐县| 宣城市| 淮滨县| 习水县| 扎鲁特旗| 谷城县| 双江| 涟水县| 宣城市| 河西区| 墨江| 八宿县| 萝北县| 庆阳市| 临城县| 家居| 开远市| 祥云县| 嘉兴市| 凤城市| 富源县| 庄河市| 景泰县| 定结县| 苏州市| 云南省| 陆河县| 拜城县| 横峰县| 仁寿县|