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 2,2',4,4'-TETRABROMODIPHENYL ETHER
5436-43-1

2,2',4,4'-TETRABROMODIPHENYL ETHER synthesis

4synthesis methods
-

Yield:5436-43-1 89%

Reaction Conditions:

for 0.2 h;Reagent/catalyst;

Steps:

1 Example 1Preparation of tetrabromobiphenyl ether-47
SiO2-Zr2 (0.05g) and 2,4-dibromophenol (2.50g) were mixed in a mortar and ground for 12 minutes,The product was separated by silica gel column chromatography using n-pentane as eluent to give 2.16 g of a white solid in 89% yield.

References:

Shandong Analysis Beta Center;Ji Wenhua;Zhao Rusong;Wang Xiao;Geng Yanling;Wang Xia CN106957218, 2017, A Location in patent:Paragraph 0043-0047

FullText

2,2',4,4'-TETRABROMODIPHENYL ETHER Related Search: