SYNTHESIS AND REACTIVITY OF TRIFLUOROMETHYLAZOSULFONYLARENES
作者:Akira Sekiya、Teruo Umemoto
DOI:10.1246/cl.1982.1519
日期:1982.10.5
Trifluoromethylazosulfonylarenes were synthesized in high yields by treatment of trifluoronitrosomethane with arenesulfonamides in the presence of a base and their reactivity was examined. It was found that they acted as effective hydrogen-acceptors as well as trifluoromethylating agents.
Fluorinated acetylenes. Part 8 [1]. Preparation and some reactions of 5,5,5-trifluoropent-3-yn-2-ol, 5,5,5-trifluoro-1-phenylpent-3-yn-2-ol and the derived ester, 2-acetoxy-5,5,5-trifluoropent-3-yne
作者:Lakhdar Sibous、Anthony E. Tipping
DOI:10.1016/s0022-1139(00)80079-2
日期:1993.5
respectively.Cycloaddition also takes place between ester 2 and furan, but the majorproducts (considered to be isomeric 1:1 adducts) have not been fully characterised.Although, ester 2 undergoes reaction with trifluoronitrosomethane, a cycloadduct hasnot been isolated, while nucleophilic attack by imidazole on the triple bond leads to the(Z)-alkene (18).
Electronic structures of acyl nitrites and nitrates
作者:Xiaoqing Zeng、Li Yao、Weigang Wang、Fengyi Liu、Qiao Sun、Maofa Ge、Zheng Sun、Jianping Zhang、Dianxun Wang
DOI:10.1016/j.saa.2005.09.003
日期:2006.7
vibrational frequency about 1750 and 1820 cm(-1) reflected on the first band, respectively, for acyl nitrites and nitrate. Comparing with the calculated energies, it can be concluded that the syn conformers with Cs overall symmetry, a planar CC(O)ONO skeleton in nitrites, and a planar CC(O)ON skeleton in nitrates, respectively, are the most stable in the gas phase.