Conversion of 2-aminonaphtho[1,2 d] selenazole to 2-methylnaphth

Details Conversion of 2-aminonaphtho[1,2 d] selenazole to 2-methylnaphth Conversion of 2-aminonaphtho[1,2 d] selenazole to 2-methylnaphth

1975-07-30

1977-02-22

Daus, Donald G.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

C07D29312

Patent

active

040091767

ABSTRACT:
This invention relates to the new compound 2-aminonaphtho [1,2-d] selenazole of the formula ##STR1## Compound (I) is prepared by halogenating 1,2,3,4-tetrahydro-1-oxonaphthalene-3-sulphonate, reacting the halogenated compound with selenourea and then eliminating the sulphonic acid group. Compound (I) is useful as starting material for the preparation of 2-methylnaphtho [1,2-d] selenazole by hydrolyzing compound (I), acylating the hydrolysis product and ring closure.

REFERENCES:
patent: 2330791 (1943-09-01), Middleton et al.
patent: 3102142 (1963-08-01), Horwitz et al.

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