Selective acylation of hydroxy-amino-arylsulfonic acids

Details Selective acylation of hydroxy-amino-arylsulfonic acids Selective acylation of hydroxy-amino-arylsulfonic acids

1981-09-23

1983-04-12

Chan, Nicky

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

260507R, 260465D, 546288, 546294, 546295, C07D21516, C07C14342

Patent

active

043799370

ABSTRACT:
An improved process for selectively N-acylating hydroxy-amino-arylsulfonic acids is disclosed wherein the hydroxy-amino-arylsulfonic acid is dissolved in water by treatment with an alkaline lithium salt, such as lithium hydroxide, and the acylation is conducted while maintaining the pH at about 3-6. The N-acyl-hydroxy-amino-arylsulfonic acids are useful as dyestuff precursors.

REFERENCES:
patent: 2335237 (1943-11-01), Coneetti
patent: 3232980 (1966-02-01), Shultis, Jr. et al.
Donaldson, The Chemistry and Technology of Naphthalene Compounds, pp. 332, 334 (1958).

Affiliated with

Also associated with

Rating

Selective acylation of hydroxy-amino-arylsulfonic acids does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Selective acylation of hydroxy-amino-arylsulfonic acids, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Selective acylation of hydroxy-amino-arylsulfonic acids will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-939632