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 2,6-Difluorobenzonitrile
1897-52-5

2,6-Difluorobenzonitrile synthesis

8synthesis methods
2,6-Difluorobenzonitrile [1897-52-5], 1- cyano-2,6-difluorobenzene, Mr 172.02, mp 29 – 30℃, forms colorless crystals. The nitrile can be produced by treatment of 2,6-dichlorobenzonitrile with potassium fluoride in sulfolane and is used as an intermediate in the synthesis of insecticides (e.g., Dimilin, Shell).
-

Yield:1897-52-5 87%

Reaction Conditions:

with Triethoxysilane;[cis-Fe(H)(SPh)(PMe3)4] in tetrahydrofuran at 60; for 24 h;Inert atmosphere;

Steps:

2.2. General procedure for the dehydration of amides to nitriles
General procedure: To a 25ml Schlenk tube containing a solution of 1 in 2ml of THF was added amide (1.0 mmol) and (EtO)3SiH (0.50 g, 3.0 mmol). The reaction mixture was stirred at 60 °C until there was no amide left (monitored by TLC and GC-MS). The product was purified according to literature procedures by Beller [27].

References:

Xue, Benjing;Sun, Hongjian;Wang, Yan;Zheng, Tingting;Li, Xiaoyan;Fuhr, Olaf;Fenske, Dieter [Catalysis Communications,2016,vol. 86,p. 148 - 150]

FullText

2,6-Difluorobenzonitrile Related Search: