Method for producing 1,2-naphthoquinone-2-diazide derivatives

Details Method for producing 1,2-naphthoquinone-2-diazide derivatives Method for producing 1,2-naphthoquinone-2-diazide derivatives

1999-06-15

2000-06-20

Powers, Fiona T.

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

Organic compounds

Diazooxide or diazotate

534557, C07C24500

Patent

active

060779411

ABSTRACT:
An effective method for producing a 1,2-naphthoquinone-2-diazide or a sulfo-substituted compound thereof from a 2-diazo-1-naphthalenesulfonic acid or a sulfo-substituted compound thereof. A 1,2-naphthoquinone-2-diazide derivative or a sulfo-substituted compound thereof is derived from a 2-diazo-1-naphthalenesulfonic acid or a sulfo-substituted compound thereof by use of an aqueous alkaline solution containing iodine; an aqueous alkaline solution containing iodine which is dissolved in an organic solvent; or an aqueous alkaline solution containing an oxidizing agent and iodine or an iodine compound.

REFERENCES:
patent: 5192640 (1993-03-01), Scheler et al.

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