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Novel perfluoroalkenylphosphonates and iodoperfluoroalkenes from 3,3 -bis (trifluoromethyl) -1,1,2,4,4,4-hexafluoro-1-butylene and nonafluoro-n-butoxy-1,1,2-trifluoroethylene |
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| Authors: | Holger Wessolowski Gary L Gard Gerd-Volker Röschenthaler |
| Institution: | aInstitut für Anorganische und Physikalische Chemie, Universtät Bremen, Leobener Strasse, 28334 Bremen, Germany bDepartment of Chemistry, Portland State University, Portland, Portland, OR 97207-0751, USA |
| Abstract: | The reaction of 3,3-bis(trifluoromethyl)-1,1,2,4,4,4-hexafluoro-1-butylene and nonafluoro-n-butoxy-1,1,2-trifluoroethylene with tris(trimethylsilyl)phosphite gave fluorotrimethylsilane and the respective (Z)-alkenylbis(trimethylsilyl)phosphonates. In one case hydrolysis afforded the free phosphonic acid (CF3)3CCF = CFP(O) (OH)2. Using tri-n-butylphosphine and boron trifluoride etherate, 3,3-bis(trifluoromethyl)-1,1,2,4,4,4-hexafluoro-1-butylene and nonafluoro-n-butoxy-1,1,2-trifluoroethylene were converted into the corresponding phosphonium tetrafluoroborates, which when reacted further with iodine in the presence of Na2CO3 gave the iodo derivatives (CF3)3CCF = CFI and C4F9OCF = CFI. |
| Keywords: | 3 3-Bis(trifluoromethyl)-1 1 2 4 4 4-hexafluoro-1-butylene Nonafluoro-n-1 1 2-butoxytrifluoroethylene Tris(trimethylsilyl)phosphite (Z)-3 3-Bis(trifluoromethyl)-1 2 4 4 4-hexafluoro-1 -iodo-1 -butylene Nonafluoro-n-butoxy-1 2-trifluoro-1 -iodo-ethylene |
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