5- OR 6-(N-PHTHALIMIDO)NAPHTHALENE-1-SULFOCHLORIDES AS SEMIPRODUCTS FOR SYNTHESIS OF SUBSTITUTED 5- OR 6-AMINONAPHTHALENE-1-SULFAMIDES Russian patent published in 1995 - IPC

Abstract SU 1702645 A3

FIELD: heterocyclic compounds. SUBSTANCE: synthesis is carried out from 5-aminonaphthalene-1-sulfoacid or 6-aminonaphthalene-1-sulfoacid and phthalic anhydride. The yield of the first compound is 82% m. p. is 280-282 C, empirical formula is C₂₃H₁₆N₂O₅S. EFFECT: increased yield of product.

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SU 1 702 645 A3

Authors

Palajma A.I.

Butenas S.Ju.

Gauchene V.L.

Nedospasov A.A.

Dates

1995-10-27—Published

1989-02-08—Filed