Claims
- 1. A compound of the formula
- C(R.sup.1).tbd.C--(CR.sup.1.sub.2).sub.n --O--C.sub.6 R.sup.2.sub.2 H.sub.2 --CH.dbd.C--[C(O)OR.sup.2].sub.2
- wherein R.sup.1 is a hydrogen atom or a C.sub.1-5 alkyl group, the group C.sub.6 R.sup.2.sub.2 H.sub.2 represents an aromatic ring, wherein R.sup.2 is a hydrogen atom, a C.sub.1-5 alkyl group or a group OR.sup.1, R.sup.3 is a C 1-5 alkyl group and n has a value of from 1 to 6, provided that the group containing the unsaturated carbon-carbon triple bond and the two R.sup.2 groups are linked to the two meta-positions and to the para-position on the aromatic ring in relation to the ester containing group.
Priority Claims (1)
Number |
Date |
Country |
Kind |
9110123 |
May 1991 |
GBX |
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Parent Case Info
This is a division of application Ser. No. 07/960,384, filed Jan. 7, 1993, now U.S. Pat. No. 5,403, 944.
US Referenced Citations (10)
Foreign Referenced Citations (2)
Number |
Date |
Country |
0305059 |
Mar 1989 |
EPX |
0350314 |
Jan 1990 |
EPX |
Divisions (1)
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Number |
Date |
Country |
Parent |
960384 |
Jan 1993 |
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