Preparation of o,o'-dihydroxyazobenzenes from o-nitrophenols

Details Preparation of o,o'-dihydroxyazobenzenes from o-nitrophenols Preparation of o,o'-dihydroxyazobenzenes from o-nitrophenols

1976-03-08

1977-10-25

Warren, Charles E.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260207, C09B 2700, C09B 4300

Patent

active

040555674

ABSTRACT:
Compounds having the formula ##STR1## are prepared from a corresponding o-nitrophenol by blocking the hydroxyl groups via acetal formation, followed by reductive coupling and acid hydrolysis.

REFERENCES:
brand & Schreber, Ber. 75. 1942, pp. 156-165.
Wagner & Zook, Synthetic Organic Chemistry, John Wiley & Sons, Inc., New York, 1953, pp. 765-766.
Ibid., at pp. 171-172.

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