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 3-(2-(triMethylsilyl)ethynyl)phenol
388061-72-1

3-(2-(triMethylsilyl)ethynyl)phenol synthesis

2synthesis methods
-

Yield:388061-72-1 100%

Reaction Conditions:

with bis-triphenylphosphine-palladium(II) chloride;copper(l) iodide;triethylamine in tetrahydrofuran at 20; for 24 h;Cooling with ice;

Steps:

3-(3-(trimethylsilyl)prop-1-yn-1-yl)phenol (12):

To a solution of 3-iodophenol (44g), CuI (1.5g), PdCl2 (PPh3)2 (4.2g) in triethylamine (60ml) and THF (300ml) under ice-water bath was added ethynyltrimethylsilane (24g) dropwise to keep the temperature below 5. Upon completion the resulting mixture was transferred to rt for 24h and then filtered. The filtrate was purified on a silica column to give 12 as dark brown liquid. (38g, 100%). This was used without further purification.

References:

Liu, Jia-Kuo;Gu, Wei;Cheng, Xiao-Rui;Cheng, Jun-Ping;Zhou, Wen-Xia;Nie, Ai-Hua [Chinese Chemical Letters,2015,vol. 26,# 10,p. 1327 - 1330] Location in patent:supporting information