Preparation of benzotriazoles

Details Preparation of benzotriazoles Preparation of benzotriazoles

1981-01-05

1982-12-14

Daus, Donald G.

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

548260, 548261, C07D24918, C07D24920

Patent

active

043639143

ABSTRACT:
This invention relates to a process for producing benzotriazoles which comprises effecting a mixture in an aqueous medium of at least one aromatic orthodiamine and one or more nitrites and heating the mixture to temperatures ranging up to about 350.degree. C. while maintaining pressures at levels sufficient to keep effective amounts of water present for the reaction.

REFERENCES:
patent: 3970667 (1976-07-01), Gengnagel et al.
Kitano, et al., "1,2,3 Benzotriazoles", Chem. Abst. 79:115594v.
Organic Synthesis, vol. 20, pp. 16-18 (1940).
Handbook of Chemistry and Physics, (1977) pp. C-155 and C-207.

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