Claims
- 1. A F-phenylalkylene oxide diacetylene having the following formula:
- C.sub.6 F.sub.5 C.tbd.C(CF.sub.2 OCF.sub.2).sub.n C.tbd.CC.sub.6 F.sub.5 "
- wherein n is an integer ranging from 3 to 8, inclusive.
- 2. The F-phenylalkylene oxide diacetylene according to claim 1 in which n is equal to 6.
- 3. A process for preparing a F-phenylalkylene oxide diacetylene which comprises the following steps:
- (a) reacting an equimolar mixture of butyllithium and a F-phenyl phosphonium salt having the formula C.sub.6 F.sub.5 CH.sub.2 P(C.sub.6 H.sub.5)Br within an inert atmosphere at about room temperature for a period of about 0.5 to 3 hours to obtain a product having the formula C.sub.6 F.sub.5 CH.dbd.P(C.sub.6 H.sub.5).sub.3 ;
- (b) reacting the product obtained in step (a) with acid chloride ClCO(CF.sub.2 OCF.sub.2).sub.n COCl (in which n is an integer ranging from 3 to 8 inclusive) in a 4 to 1 mole ratio within an inert atmosphere at about room temperature for about 0.5 to 2 hours to obtain a keto-ylid having the formula: ##STR5## (in which n is an integer from 3 to 8 inclusive); and (c) having the keto-ylid under a vacuum, at a temperature ranging from about 100.degree. to 300.degree. C. for a period of about 6 to 12 hours, thereby obtaining a F-phenylalkylene oxide diacetylene having the formula C.sub.6 F.sub.5 C.tbd.C(CF.sub.2 OCF.sub.2).sub.n C.tbd.CC.sub.6 F.sub.5 (in which n is an integer from 3 to 8 inclusive).
RIGHTS OF THE GOVERNMENT
The invention described herein may be manufactured and used by or for the Government of the United States for all governmental purposes without the payment of any royalty.
US Referenced Citations (1)
Number |
Name |
Date |
Kind |
3661967 |
Anderson et al. |
May 1972 |
|