Claims
- 1. A process for preparing an arylsulfonyl halide of the formula
- R--(SO.sub.2 --X).sub.n,
- wherein X is halo, n is an integer of from 1 to 4, and R is an aryl group, which comprises reacting an aromatic compound of the formula R--H with a halosulfonic acid, followed by treatment with a molar excess of a C.sub.3 -C.sub.6 aliphatic ketone.
- 2. The process of claim 1, wherein X is chloro.
- 3. The process of claim 1, wherein X is bromo.
- 4. The process of claim 1, wherein R--H is an anthraquinone residue linked to at least one benzene ring by sulfur, oxygen or amino.
- 5. The process of claim 1, wherein R--H is an anthrapyridone residue linked to at least one benzene ring by sulfur, oxygen or amino.
- 6. The process of claim 1, wherein R--H is selected from the group consisting of ##STR7##
- 7. The process of claim 1, wherein R--H is ##STR8##
- 8. The process of claim 1, wherein R--H is ##STR9##
- 9. The process of claim 1, wherein R--H is ##STR10##
- 10. The process of claim 1, wherein R--H is ##STR11##
- 11. The process of claim 1, wherein R--H is ##STR12##
- 12. The process of claim 1, wherein R--H is ##STR13##
- 13. A process for preparing an arylsulfonyl halide of the formula
- R--(SO.sub.2 --X).sub.n,
- wherein X is halo, n is an integer of from 1 to 4, and R is an aryl group, which comprises reacting an aromatic compound of the formula R--H with a halosulfonic acid, followed by treatment with a molar excess of isopropyl alcohol or a mixture of isopropyl alcohol and a C.sub.3 -C.sub.6 aliphatic ketone.
- 14. The process of claim 13, wherein X is chloro.
- 15. The process of claim 13, wherein X is bromo.
- 16. The process of claim 13, wherein R--H is selected from the group consisting of ##STR14##
- 17. The process of claim 13, wherein R--H is ##STR15##
- 18. The process of claim 13, wherein R--H is ##STR16##
- 19. The process of claim 13, wherein R--H is ##STR17##
- 20. The process of claim 13, wherein R--H is ##STR18##
- 21. The process of claim 13, wherein R--H is ##STR19##
- 22. The process of claim 13, wherein R--H is ##STR20##
- 23. The process of claim 13, wherein the mixture of isopropanol and a C.sub.3 -C.sub.6 aliphatic ketone contains at least 25% isopropyl alcohol by weight.
- 24. The process of claim 13, wherein the C.sub.3 -C.sub.6 aliphatic ketone is acetone.
- 25. The process of claim 13, wherein isopropyl alcohol is utilized alone.
CROSS REFERENCE TO RELATED APPLICATION
This application is a continuation-in-part of U.S. patent application Ser. No. 08/116,435, filed Sep. 3, 1993, now abandoned, incorporated herein by reference.
US Referenced Citations (9)
Foreign Referenced Citations (1)
Number |
Date |
Country |
0289952 |
Nov 1988 |
EPX |
Non-Patent Literature Citations (3)
Entry |
Romeo B. Wagner and Harry D. Zook, "Synthetic Organic Chemistry," John Wiley & Sons, New York, pp. 821-826 (1953). |
C. M. Suter, "The Organic Chemistry of Sulfur," John Wiley & Sons, Inc., New York (1944). |
R. C. Fuson, "Reactions of Organic Compounds," John Wiley & Sons, Inc., New York, pp. 42-43 (1962). |
Continuation in Parts (1)
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Number |
Date |
Country |
Parent |
116435 |
Sep 1993 |
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