Aminonaphthoselenazole

Details Aminonaphthoselenazole Aminonaphthoselenazole

1974-09-30

1976-07-13

Rush, Raymond V.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260511, 260562P, C07D29312

Patent

active

039693643

ABSTRACT:
This invention relates to the new compound 2-aminonaphtho [1,2-d] selenazole of the formula ##SPC1##
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 hydrolysing compound (I), acylating the hydrolysis product and ring closure.

REFERENCES:
patent: 2330791 (1943-09-01), Middleton et al.
patent: 2339094 (1944-01-01), Middleton et al.
patent: 2475949 (1949-07-01), Cressman
patent: 2476669 (1949-07-01), Knott
King et al, J. Am. Chem. Soc. 73 1864-1865 (1951).

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