Preparation of halophthalic anhydrides

Details Preparation of halophthalic anhydrides Preparation of halophthalic anhydrides

1986-12-29

1988-11-15

Raymond, Richard L.

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

C07D30789

Patent

active

047851210

ABSTRACT:
A process for selectively substituting an aromatic nitro group of a nitrophthalic anhydride with a halo group which comprises contacting the nitroaromatic-containing compound with a phosphorus halide of formula:

REFERENCES:
patent: 3956321 (1976-05-01), Markezich et al.
Timokhin et al, Chemical Abstracts, vol. 101 (1984) 171369k.
Matyushecheva et al, Chemical Abstracts, vol. 80 (1974) 108490a.
Yagupol'skii et al, Chemical Abstracts, vol. 84 (1976) 135727x.

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