午夜插插,噜噜噜影院,啪啪伊人网,欧美熟夫,景甜吻戏视频,男人强操性感蕾丝美女视频在线网站,日本美女跳舞视频

Welcome to chemicalbook!
Chinese English Japanese Germany Korea
400-158-6606
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-Hydroxy-2-nitrobenzoic acid
610-37-7

5-Hydroxy-2-nitrobenzoic acid synthesis

12synthesis methods
-

Yield: 70%

Reaction Conditions:

with copper(II) nitrate trihydrate in tetrahydrofuran for 3 h;Reflux;regioselective reaction;

Steps:

General experimental procedure for nitration of phenols
General procedure: A suspension of 2-methylphenol(18.5 mmol, 1.0 eq) and Cu(NO3)2.3H2O (27.7 mmol, 1.5 eq) in THF was stirred magnetically at 60°C or reflux for several hours. Then after the solvent was removed under vacuum, the mixture was extracted with EtOAc (3×30 mL). The combined organic layers were washed with brine (5mL), dried over anhydrous MgSO4 and concentrated under vacuum. The crude residue was purified by column chromatography to afford the product (67-90%).

References:

Chen, Ling-Yan;Liu, Tao;Zhou, Xiaokun;Sun, Zhihua [ARKIVOC,2014,vol. 2014,# 5,p. 64 - 71]

5-Hydroxy-2-nitrobenzoic acid Related Search: