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 HEXAFLUOROCYCLOBUTENE
697-11-0

HEXAFLUOROCYCLOBUTENE synthesis

11synthesis methods
-

Yield: 96.8%

Reaction Conditions:

in N,N-dimethyl-formamide at 160; for 6 h;Autoclave;Temperature;Reagent/catalyst;

Steps:

1; 2; 10; 11 Example 1
In a 1 L autoclave, 2 mol of N,N-dimethylformamide and 1 mol were added.1,2-dichlorohexafluorocyclobutane (molar ratio of cis and trans is 60:40),After reacting at 160 ° for 6 hours, after the reaction is finished, rectification is carried out.Obtaining hexafluorocyclobutene (boiling point 5-6 ° C / 760 mmHg),The yield was 96.8% and the purity was 99.1%.

References:

Beijing Yuji Science And Technology Co., Ltd.;Zhang Chengping;Zhang Wenni;Guo Qin;Quan Hengdao CN110002948, 2019, A Location in patent:Paragraph 0054-0057; 0072-0075

HEXAFLUOROCYCLOBUTENE Related Search: