IT1307976B1 - PROCESS FOR THE PREPARATION OF BENZOPHENONSOLPHONIC ACIDS. - Google Patents
PROCESS FOR THE PREPARATION OF BENZOPHENONSOLPHONIC ACIDS.Info
- Publication number
- IT1307976B1 IT1307976B1 ITBG990013A IT1307976B1 IT 1307976 B1 IT1307976 B1 IT 1307976B1 IT BG990013 A ITBG990013 A IT BG990013A IT 1307976 B1 IT1307976 B1 IT 1307976B1
- Authority
- IT
- Italy
- Prior art keywords
- benzophenonsolphonic
- acids
- preparation
- benzophenonsolphonic acids
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C303/00—Preparation of esters or amides of sulfuric acids; Preparation of sulfonic acids or of their esters, halides, anhydrides or amides
- C07C303/02—Preparation of esters or amides of sulfuric acids; Preparation of sulfonic acids or of their esters, halides, anhydrides or amides of sulfonic acids or halides thereof
- C07C303/04—Preparation of esters or amides of sulfuric acids; Preparation of sulfonic acids or of their esters, halides, anhydrides or amides of sulfonic acids or halides thereof by substitution of hydrogen atoms by sulfo or halosulfonyl groups
- C07C303/08—Preparation of esters or amides of sulfuric acids; Preparation of sulfonic acids or of their esters, halides, anhydrides or amides of sulfonic acids or halides thereof by substitution of hydrogen atoms by sulfo or halosulfonyl groups by reaction with halogenosulfonic acids
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT1999BG000013 IT1307976B1 (en) | 1999-03-17 | 1999-03-17 | PROCESS FOR THE PREPARATION OF BENZOPHENONSOLPHONIC ACIDS. |
FR0002702A FR2791057A1 (en) | 1999-03-17 | 2000-03-02 | Benzophenone sulfonic acids preparation, useful as sunscreens against UV- A and UV-B, comprises reacting non-sulfonated benzophenone with chlorosulfonic acid in dialkylcarbonate solvent medium |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT1999BG000013 IT1307976B1 (en) | 1999-03-17 | 1999-03-17 | PROCESS FOR THE PREPARATION OF BENZOPHENONSOLPHONIC ACIDS. |
Publications (2)
Publication Number | Publication Date |
---|---|
ITBG990013A1 ITBG990013A1 (en) | 2000-09-17 |
IT1307976B1 true IT1307976B1 (en) | 2001-11-29 |
Family
ID=11336679
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT1999BG000013 IT1307976B1 (en) | 1999-03-17 | 1999-03-17 | PROCESS FOR THE PREPARATION OF BENZOPHENONSOLPHONIC ACIDS. |
Country Status (2)
Country | Link |
---|---|
FR (1) | FR2791057A1 (en) |
IT (1) | IT1307976B1 (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB0122903D0 (en) * | 2001-09-22 | 2001-11-14 | Great Lakes Chemical Europ | Sulphonation of phenols |
CN101624357B (en) * | 2009-08-05 | 2013-01-09 | 宜都市华阳化工有限责任公司 | Method for producing 2-hydroxyl-4-methoxybenzophenone-5-sulfonic acid |
FR2949342B1 (en) * | 2009-08-28 | 2011-10-21 | Oreal | COMPOSITION COMPRISING A SILICONE S-TRIAZINE SUBSTITUTED WITH AT LEAST TWO ALKYLAMINOBENZOATE GROUPS AND A HYDROPHILIC UVA FILTER |
CN102796029A (en) * | 2011-05-23 | 2012-11-28 | 辽宁石油化工大学 | Clean synthesis process for cosmetic grade 2-hydroxy-4-methoxybenzophenone-5-sulfonic acid |
CN109456233A (en) * | 2018-10-23 | 2019-03-12 | 襄阳金达成精细化工有限公司 | A kind of preparation method of ultraviolet absorbing agent UV-284 |
CN115490618A (en) * | 2022-09-02 | 2022-12-20 | 山东金城医药化工有限公司 | Preparation method of sodium paeonol sulfonate |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3824486A1 (en) * | 1988-07-20 | 1990-02-08 | Basf Ag | METHOD FOR PRODUCING 4-ALKOXY-2-HYDROXYBENZOPHENONE-5-SULPHONIC ACIDS |
JPH09227499A (en) * | 1996-02-23 | 1997-09-02 | Konika Chem:Kk | Sulfonation of phenols |
-
1999
- 1999-03-17 IT IT1999BG000013 patent/IT1307976B1/en active
-
2000
- 2000-03-02 FR FR0002702A patent/FR2791057A1/en not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
FR2791057A1 (en) | 2000-09-22 |
ITBG990013A1 (en) | 2000-09-17 |
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