Bisphenol A compounds useful as markers for liquid hydrocarbons and other fuels and oils
View Patent ↗A compound having formula (I), wherein R 1 and R 2 independently represent hydrogen or C 1 -C 4 alkyl groups, and G represents hydrogen or at least one substituent selected from the group consisting of C 1 -C 18 alkyl and C 1 -C 18 alkoxy; provided that when R 1 and R 2 represent hydrogen, G does not represent hydrogen, 4-methyl, 4-methoxy, 3-methoxy, 2,6-dipropargyl, 4-vinyl, 4-ethynyl or 3-ethynyl.
1. A compound having formula (I),
wherein R 1 and R 2 independently represent hydrogen or C 1 -C 4 alkyl groups, and G represents hydrogen or at least one substituent selected from the group consisting of C 1 -C 18 alkyl and C 1 -C 18 alkoxy; provided that when R 1 and R 2 represent hydrogen, G does not represent hydrogen, 4-methyl, 4-methoxy, 3-methoxy, 2,6-dipropargyl, 4-vinyl, 4-ethynyl or 3-ethynyl; and wherein alkyl groups are saturated and unsubstituted.
2. The compound of claim 1 in which R 1 and R 2 independently represent hydrogen or methyl.
3. The compound of claim 2 in which G represents hydrogen or at least one substituent selected from the group consisting of C 1 -C 8 alkyl and C 1 -C 8 alkoxy.
4. The compound of claim 3 in which G represents hydrogen or one or two substituents selected from the group consisting of C 1 -C 6 saturated alkyl and C 1 -C 6 saturated alkoxy.
5. The compound of claim 4 in which G represents one or two substituents selected from the group consisting of C 1 -C 4 saturated alkyl and C 1 -C 4 saturated alkoxy.
6. The compound of claim 5 in which G represents one or two substituents selected from the group consisting of methyl and ethyl.
7. A compound having formula (I),
wherein R 1 and R 2 independently represent hydrogen or C 1 -C 4 alkyl groups, and G represents at least one C 1 -C 18 saturated and unsubstituted alkyl substituent, provided G does not represent a single alkyl substituent in the 4-position.
8. The compound of claim 7 in which R 1 and R 2 independently represent hydrogen or methyl.
9. The compound of claim 8 in which G represents one or two C 1 -C 8 saturated alkyl substituents and R 1 and R 2 represent hydrogen.