1,3-bis(alkylcarbonato)-nitrobenzenes

Details 1,3-bis(alkylcarbonato)-nitrobenzenes 1,3-bis(alkylcarbonato)-nitrobenzenes

1987-10-19

1990-03-27

Garner, Vivian

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

Organic compounds

Carbonate esters

564418, 568706, 568711, C07C 7926, C07C 7928

Patent

active

049122460

ABSTRACT:
High purity amino-1,3-benzenediols are prepared by (a) contacting a 1,3-bis(alkylcarbonato)benzene with a nitrating agent under rection conditions such that a 1,3-bis(alkylcarbonato)nitrobenzene is formed, (b) contacting the 1,3-bis(alkylcarbonato)nitrobenzene with a hydrolyzing agent under conditions such that a nitro-1,3-benzenediol is produced, and (c) contacting the nitro-1,3-benzenediol with a reducing agent under conditions such that an amino-1,3-benzenediol is produced. Of the amino-1,3-benzenediols, 4,6-diamino-1,3-benzenediol is particularly useful in the preparation of high molecular weight polybenzoxazoles.

REFERENCES:
patent: 2370588 (1945-02-01), Strain
patent: 2378168 (1945-06-01), Witte
patent: 2400904 (1946-05-01), Batchhelder
patent: 2446519 (1948-08-01), Bean
patent: 2458214 (1949-01-01), Souders
patent: 2517965 (1950-08-01), Bohl
patent: 2525515 (1950-10-01), Bean
patent: 3221062 (1965-11-01), Wright
patent: 23792150 (1945-06-01), Muskat et al.
patent: 3933926 (1976-01-01), Satter et al.
patent: 3981933 (1976-09-01), Cook et al.
Greene, Protective Groups in Organic Synthesis, pp. 64-71.

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