Naphtholactam dyes and optical recording medium containing these

Details Naphtholactam dyes and optical recording medium containing these Naphtholactam dyes and optical recording medium containing these

1987-03-12

1989-10-24

Brust, Joseph Paul

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

430270, 548424, 548436, C07D20990, C07D40904

Patent

active

048763560

ABSTRACT:
Naphtholactam dyes of the formula ##STR1## where R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5, n, p, Z.sup.1, Z.sup.2 and the rings A, B, C and D each have the meanings stated in the description, and an optical recording medium which contains one or more naphtholactam dyes and may contain a base.

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Ullmann, Encylkopadie Der Technischen Chemie, vol. 7, p. 216, and vol. 11, pp. 435-436 (1976).
J. Org. Chemi. USSR 18, 380-386, (1982); Mikhailenko et al.
Chem. Heterocycl. Comp. 9, 314-315, (1973); Shteinberg.
SU-A-613-692, (Abstract only supplied and considered), 1979.
J. Vac. Sci. Techol. 18(1), Jan./Feb. 1981, pp. 100 to 104, Smith.

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