Claims
- 1. A method of forming a compound of the formula IV ##STR22## where R is a benzoxazole group substituted with a phenylene group on the oxazole moiety, the fused benzene ring of the benzoxazole group being attached to the C.sub.3 F.sub.6 group and the phenylene group on the oxazole moiety being attached to the --SiXX'.sub.2 group,
- X is H, Cl, or Br,
- X' is Cl, or Br, and
- n is an integer from 1 to about 10, comprising the steps of:
- a) providing a compound of the formula II ##STR23## where Y is a halogen, and
- R is as defined above;
- b) reacting said compound of formula II with an alkyl lithium compound in a molar ratio of about 1:2 in an appropriate solvent to form a reaction mixture;
- c) gradually adding to said reaction mixture a silicon halide having formula III ##STR24## where Hal is Cl or Br, and
- X and X' are as defined above; to form said compound of formula IV.
- 2. A method according to claim 1 wherein said silicon halide is silicon tetrachloride.
- 3. A method according to claim 1 wherein said alkyl lithium compound comprises butyl lithium.
- 4. A method according to claim 1 wherein said solvent is selected from the group consisting of diethylether, tetrahydrofuran, dioxane, and dimethoxyethane.
- 5. A method of forming a compound of the formula IV ##STR25## where R is a benzoxazole group substituted with a phenylene group on the oxazole moiety, the fused benzene ring of the benzoxazole group being attached to the C.sub.3 F.sub.6 group and the phenylene group on the oxazole moiety being attached to the --SiXX'.sub.2 group,
- Z is OR',
- R' is an alkyl group having 1 to 8 carbon atoms, and
- n is an integer from 1 to about 10, comprising the steps of:
- a) providing a compound of the formula II ##STR26## where Y is a halogen, and
- R is as defined above;
- b) reacting said compound of formula II with an alkyl lithium compound in a molar ratio of about 1:2 in an appropriate solvent to form a first reaction mixture;
- c) gradually adding to said first reaction mixture a silicon halide having formula III ##STR27## where Hal is Cl or Br, and
- X and X' are Cl or Br;
- to form a second reaction mixture;
- d) adding to said second reaction mixture a compound of the formula R'OH where R' is an defined above;
- to form said compound of formula IV.
- 6. A method according to claim 5 wherein said compound R'OH is selected from the group consisting of methanol and ethanol.
- 7. A method of forming a compound of formula IV ##STR28## where R is a benzoxazole group substituted with a phenylene group on the oxazole moiety, such that the fused benzene ring of the benzoxazole group is attached to the C.sub.3 F.sub.6 group and the phenylene group on the oxazole moiety is attached to the --SiXX'.sub.2 group,
- X is OR', H, Cl, or Br,
- X' is OR', Cl, or Br,
- R' is an alkyl group having 1 to 8 carbon atoms, and
- n is an integer from 1 to about 10,
- a) providing a compound of formula I ##STR29## where R, X, and X' are as defined above; and
- b) subjecting said compound of formula I to hydrolysis.
- 8. The method of claim 7 wherein step "b" comprises reaction with a mild acid or base.
Parent Case Info
This is a division of co-pending application Ser. No. 07/073,025 filed on Jul. 14, 1987, now U.S. Pat. No. 4,935,479.
Government Interests
This invention was made with Government support under Contract No. N00014-85-C-0881 awarded by the Department of the Navy. The Government has certain rights in this invention.
US Referenced Citations (5)
Foreign Referenced Citations (2)
Number |
Date |
Country |
WO8601511 |
Mar 1986 |
WOX |
2189788 |
Apr 1987 |
GBX |
Divisions (1)
|
Number |
Date |
Country |
Parent |
73025 |
Jul 1987 |
|