Process for the preparation of diazocyano acids by reacting keto

Details Process for the preparation of diazocyano acids by reacting keto Process for the preparation of diazocyano acids by reacting keto

1984-11-29

1987-08-04

Higel, Floyd D.

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

Organic compounds

Azo

526219, 528292, 534587, 534838, 534886, 534887, C07C10126, C07C10702, C08F 404, C08G 6368

Patent

active

046847189

ABSTRACT:
A process for the preparation of a diazocyano acid, which comprises reacting a keto-acid or its sodium salt with a cyanogen compound such as sodium cyanide or hydrogen cyanide and a hydrazine in water to form a concentrated aqueous solution of a hydrazo compound, adding acetone and/water to the concentrated aqueous solution to form a solution of the hydrazo compounds, adding chlorine gas to the solution to oxidize the hydrazo compound and form a diazocyano acid, adding acetone to the obtained reaction mixture during or after the oxidation if necessary, and separating and recovering the supernatant layer of the acetone-water solution containing the diazocyano acid from the mixture.

REFERENCES:
patent: 2520338 (1950-08-01), Robertson
patent: 3192196 (1965-06-01), Vidal et al.
patent: 3285949 (1966-11-01), Siebert
patent: 3775395 (1973-11-01), Koyanagi et al.
patent: 4101522 (1978-07-01), Sheppard et al.
patent: 4272435 (1981-06-01), Matsuda et al.

Affiliated with

Also associated with

Rating

Process for the preparation of diazocyano acids by reacting keto does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process for the preparation of diazocyano acids by reacting keto, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for the preparation of diazocyano acids by reacting keto will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-884511