Benzheterocyclic compounds

Details Benzheterocyclic compounds Benzheterocyclic compounds

1990-10-26

1991-12-10

Richter, Johann

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

548156, 548219, 548326, 546256, 546271, 544 80, C07D23504, C07D23502

Patent

active

050719963

ABSTRACT:
Novel hydroxy-benzoheterocyclic-substituted 3-oxopentane derivatives are produced by reaction of a hydroxy-containing ortho-phenylene amine compound and the source of a five-carbon keto-containing moiety selected from 4-oxoheptanedioic acid compounds or 1,6-dioxa[4.4]spirodilactones. The derivatives produced from hydroxy-phenylenediamines are further reacted to produce compounds of higher cyclic functionality.

REFERENCES:
patent: 1999181 (1935-04-01), Conover et al.
Cava et al., J. Am. Chem. Soc., 77, p. 6022 (1955).
Cava et al., J. Am. Chem. Soc., 79, p. 1706 (1957).
Sikes et al., "ACS Meeting Minutes", Apr. 1989, Dallas, p. 614.

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