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 2,3,5,6-TETRAFLUORO-4-AMINOBENZOTRIFLUORIDE
651-83-2

2,3,5,6-TETRAFLUORO-4-AMINOBENZOTRIFLUORIDE synthesis

9synthesis methods
-

Yield: 93%

Reaction Conditions:

with ammonia at 20; for 6 h;Autoclave;

Steps:

4.2.1. 2,3,5,6-Tetrafluoro-4-(trifluoromethyl)aniline (7)
1,2,3,4,5-Pentafluoro-6-(trifluoromethyl)benzene (50 g, 0.3 mol) and liquid ammonia were placed into the autoclave (volumetric capability 0.1 L). The reaction mixture was stirred at room temperature (r.t.) for 6 h. After completion of ammonia evaporation, H2O (50 mL) was added to the residue. The reaction product was separated by steam distillation. The distillate was extracted with CH2Cl2 (2100 mL) and dried (MgSO4). After evaporation of the solvent in vacuo, the title product (47 g, 93 %) was obtained as colorless liquid (the 1H and 19F NMR spectra agree well with the literature data [35].

References:

Politanskaya, Larisa V.;Shteingarts, Vitalij D.;Tretyakov, Evgeny V. [Journal of Fluorine Chemistry,2016,vol. 188,p. 85 - 98]

2,3,5,6-TETRAFLUORO-4-AMINOBENZOTRIFLUORIDE Related Search: