Unsymmetrical aliphatic monoazo compounds

Details Unsymmetrical aliphatic monoazo compounds Unsymmetrical aliphatic monoazo compounds

1971-06-01

1976-01-06

Warren, Charles F.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260 883, 260 891, 260 893, 260 895, 260 915, 260 928, 260 935, 260 937, 260 942, 260 949, 260864, 260465E, 2604655A, 260566B, C07C10702

Patent

active

039311430

ABSTRACT:
Unsymmetrical azo compounds: ##EQU1## where (R").sub.3 C-- is tertiary-aliphatic and Z is cyano or a derivative thereof, e.g., 2-t-butylazo-2-cyanopropane; processes for preparing such azo compounds by (a) adding hydrocyanic acid to a preformed hydrazone, ##EQU2## of a ketone to form a hydrazo compound, and oxidizing the hydrazo compound; or (b) oxidizing the hydrazo compound formed by the reaction of a t-aliphatic hydrazine with hydrogen or alkali metal cyanide in water.

REFERENCES:
patent: 2492763 (1949-12-01), Pinkey
patent: 2515628 (1950-07-01), Castle
patent: 2586995 (1952-02-01), Robertson
patent: 2599299 (1952-06-01), Upson
patent: 2605260 (1952-07-01), Johnson
patent: 2711405 (1955-06-01), Anderson
patent: 2778818 (1957-01-01), Hyson et al.
patent: 3309297 (1967-03-01), Takayama et al.
patent: 3350385 (1967-10-01), Spialter
Wagner & Zook, Synthetic Organic Chemistry, John Wiley & Sons, Inc., New York, 1953, pp. 591-594.

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