Borates for photoactivated chemical bleaching
View Patent ↗A borate compound for use as photoinduced chemical bleaching reagent is disclosed having improved bleaching performance under certain conditions, compared to neutral borates. The compounds are comprised of Formula I; R 1 R 2 R 3 R 4 BX a I where each R 1 , R 2 , and R 3 and R 4 is, independently, an alkyl, alkylaryl, or arylalkyl, with the proviso that at least one of R 1 , R 2 , and R 3 and R 4 is an alkyl group and at least two of R 1 , R 2 , R 3 and R 4 group is positively charged; X is an anion; and a equals 1, 2, or 3.
1. A compound selected from the group consisting of e, f, and g:
wherein
X is an anion;
R is an alkyl cyclopentyl; and
Y is an alkyl.
2. The compound of claim 1 , wherein X is I or OSO 3 Me.
3. A compound wherein the compound is
4. A compound selected from the group consisting of i, j, and k:
wherein
X is an anion; and
R is an alkyl.
5. The compound of claim 4 , wherein X is I or OSO 3 Me.
6. A compound, wherein the compound is
and
X is I or OSO 3 Me.