3,5-Disubstituted phthalic acids and phthalic anhydrides

Details 3,5-Disubstituted phthalic acids and phthalic anhydrides 3,5-Disubstituted phthalic acids and phthalic anhydrides

1982-04-30

1984-10-30

Rollins, Alton D.

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

548476, 548480, 562432, C07D30789

Patent

active

044801050

ABSTRACT:
Novel compounds of the formula II ##STR1## are described, in which M.sub.1 and M.sub.2 individually are --OH or together are --O--, X is --NO.sub.2, --OR', --SR' or SO.sub.2 R' and the (R')s independently of one another are C.sub.1-20 -alkyl, C.sub.3-5 -alkenyl, C.sub.3-5 -alkynyl, C.sub.2-4 -monohydroxyalkyl, C.sub.1-12 -halogenoalkyl, benzyl, C.sub.5-12 -cycloalkyl, phenyl, carboxyphenyl, halogenophenyl, nitrophenyl, alkyl- or alkoxy-phenyl each having 1-4 C atoms in the alkyl or alkoxy moieties, or acetylaminophenyl, such as for example 3-n-butylthio-5-nitrophthalic anhydride. The compounds (II) in which M.sub.1 and M.sub.2 together are --O-- are suitable as sensitizers for photo-crosslinkable polymers or as initiators for the photopolymerization of ethylenically unsaturated compounds or for the photochemical crosslinking of polyolefins, and those where M.sub.1 and M.sub.2 are --OH are useful intermediates for those wherein M.sub.1 and M.sub.2 together are --O--.

REFERENCES:
patent: 3520890 (1970-07-01), Fouche
patent: 3850965 (1974-11-01), Williams
patent: 3857861 (1974-12-01), Lang
patent: 4363917 (1982-12-01), Fischer et al.

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