Spiro-pyrazoline derivatives and method for the production there

Details Spiro-pyrazoline derivatives and method for the production there Spiro-pyrazoline derivatives and method for the production there

1974-06-12

1976-03-16

Rizzo, Nicholas S.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260283R, 260286R, 260310C, C07D21538

Patent

active

039445569

ABSTRACT:
Spiro-pyrazoline derivatives of the general formula ##SPC1##
Where Z.sub.1, Z.sub.2, R.sub.1 to R.sub.4 are as defined hereinafter and methods for their preparation are disclosed. The compounds are useful as organic photoconductors, organic fluorescent materials and as additives for silver salt and non-silver salt photographic materials.

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