Synthese de tetrakis(perfluoroalkyl)-1,2,3,4 butadienes-1,3 par duplication des bis(perfluoroalkyl)-1,2 iodoethenes en presence de cuivre: Une nouvelle serie de transporteurs de gaz dissous pour usages biologiques

Coupling routes to hexafluoro-1,3-butadiene, substituted-1,3-fluorine-containing butadienes and fluorinated polyenes

“…Since 2 is prepared most conveniently from [F 2 C CFZnX], a more simple procedure would involve the preparation of 1 directly from the vinylzinc reagent. In the introduction section, it was noted that Norris and Finnegan [4] were successful in coupling [CF 3 CBBCZnCl] to the diyne with CuCl 2 . Thus Hansen attempted to couple [F 2 C CFZnX] with CuBr 2 as a direct route to 1 [32].…”

“…(2)). Reiss and co-workers prepared a series of 1,2,3,4-tetrakis (perfluoroalkyl)-1,3-butadienes via copper coupling of bis 1,2(perfluoroalkyl)-iodoethenes [3] (Eq. (3)).…”

“…For example, Norris and Finnegan prepared 1,1,1,6,6,6-hexafluorohexa-2,4-diyne via oxidative coupling of the 3,3,3-trifluoropropyne derivative, CF 3 CBBCZnX, with cupric chloride [4] (Eq. (4)).…”

“…(4)). Similarly, Cairncross and Sheppard, in their pioneering work on the preparation of pentafluorophenylcopper (I), reported that C 6 F 5 Cu is oxidized cleanly at 0 8C with CuBr 2 to CF 3 (4) perfluoro biphenyl [5] (Eq. (5)).…”

Nonpolar Gemini Amphiphiles Self‐Assemble into Stacked Layers of Nano‐Objects

“…Tetrablocks a and b (Scheme 1), in which all four chains are perfluorinated, have been reported. [22,23] However, these compounds are not amphiphilic and have no potential for self-assembly.…”