Organic compounds -- part of the class 532-570 series – Organic compounds – Carboxylic acids and salts thereof
Patent
1988-02-18
1989-03-21
Killos, Paul J.
Organic compounds -- part of the class 532-570 series
Organic compounds
Carboxylic acids and salts thereof
560 56, 260544B, C07C 6206, C07C 6976
Patent
active
048144967
ABSTRACT:
Esters of spiro(bis)indane bis(carboxyphenyl ethers) are prepared by the reaction of spiro(bis)indane bisphenol di-(alkali metal) salts with nitro- or chloro-substituted benzoic acid esters, and may be converted to the free acids and thence to the acid chlorides. The latter are useful for preparation of macrocyclic polyamide oligomers.
REFERENCES:
patent: 4734482 (1988-03-01), Tamai et al.
Guggenheim Thomas L.
McCormick Sharon J.
Davis Jr. James C.
General Electric Company
Killos Paul J.
Magee Jr. James
Pittman William H.
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