US4046776A
Expired / Lapsed
US
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Heterocyclic substituted lactone compounds
Assignee: Novartis Corp
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Filing: 1975-04-02
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Granted: 1977-09-06
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Expires: 1995-04-02
Abstract
Abstract Lactone compounds of the formula ##STR1## wherein X represents alkyl with 1 to 12 carbon atoms, alkoxy with 1 to 12 carbon atoms or acyloxy with 2 to 12 carbon atoms, Y represents an optionally substituted 2-pyrrolyl, 3-indolyl or 3-carbazolyl radical, The nitrogen ring A represents a heterocyclic radical which optionally includes a further hetero atom as a ring member and the ring B represents a 6-membered aromatic or heterocyclic ring which may have an aromatic condensed ring and both the ring B and the condensed ring may be substituted. These lactone compounds are particularly useful as color formers which give intense green-blue, blue or violet-blue colors when they are brought into contact with an electron-accepting co-reactant.
Inventors
- 👤 Robert Garner
- 👤 Jean-Claude Petitpierre
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 04:28
CPC Classifications
C; C07; C07D; C07D491/00; C07D491/02; C07D491/04; B; B41; B41M; B41M5/00; B41M5/124; B41M5/132; B41M5/136; B41M5/145; B41M5/26; B41M5/30; B41M5/323; B41M5/327
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
158 words
A lactone compound of the formula ##STR20## wherein X 1 is alkyl of 1 to 4 carbon atoms, alkoxy of 1 to 8 carbon atoms, or acyloxy of 2 to 8 carbon atoms selected from the group consisting of akyl carboxylic acid acyloxy and benzoyloxy; Y 1 represents ##STR21## wherein R is hydrogen, alkyl of 1 to 12 carbon atoms, alkenyl of up to 12 carbon atoms, alkanoyl of 2 to 4 carbon atoms, phenyl, benzyl or phenyl or benzyl which are substituted by halo, nitro, methyl or methoxy; Z is hydrogen, alkyl of 1 to 12 carbon atoms or phenyl; and the benzene ring E is unsubstituted or substituted by alkyl of 1 to 4 carbon atoms, alkoxy of 1 to 4 carbon atoms, halo or nitro; the ring B, represents naphthalene, benzene or benzene substituted by chloro, bromo or nitro; and the ring A represents pyrrolidinyl, piperidino, pipecolino, perhydroazepinyl, hexamethyleneiminyl, heptamethylene-iminyl, octamethyleneiminyl, 1,2,3,4-tetrahydroquinolinyl indolinyl, phthalimidinyl, hexahydrocarbozolyl.
Claim 2
Dependent Claim
158 words
A lactone compound of the formula ##STR20## wherein X 1 is alkyl of 1 to 4 carbon atoms, alkoxy of 1 to 8 carbon atoms, or acyloxy of 2 to 8 carbon atoms selected from the group consisting of akyl carboxylic acid acyloxy and benzoyloxy; Y 1 represents ##STR21## wherein R is hydrogen, alkyl of 1 to 12 carbon atoms, alkenyl of up to 12 carbon atoms, alkanoyl of 2 to 4 carbon atoms, phenyl, benzyl or phenyl or benzyl which are substituted by halo, nitro, methyl or methoxy; Z is hydrogen, alkyl of 1 to 12 carbon atoms or phenyl; and the benzene ring E is unsubstituted or substituted by alkyl of 1 to 4 carbon atoms, alkoxy of 1 to 4 carbon atoms, halo or nitro; the ring B, represents naphthalene, benzene or benzene substituted by chloro, bromo or nitro; and the ring A represents pyrrolidinyl, piperidino, pipecolino, perhydroazepinyl, hexamethyleneiminyl, heptamethylene-iminyl, octamethyleneiminyl, 1,2,3,4-tetrahydroquinolinyl indolinyl, phthalimidinyl, hexahydrocarbozolyl.
Claim 3
Dependent Claim
14 words
A compound according to claim 1, wherein the ring A represents piperidino or pyrrolidinyl.
Claim 4
Dependent Claim
65 words
A compound according to claim 2 of the formula ##STR22## wherein Y 2 is ##STR23## where R 1 is hydrogen, alkyl of 1 to 12 carbon atoms, alkanoyl of 2 of 4 carbon atoms or benzyl; Z 1 represents hydrogen, alkyl of 1 to 4 carbon atoms or phenyl; and the benzene ring D is unsubstituted or substituted by nitro or 1 to 4 halo.
Claim 5
Dependent Claim
67 words
A lactone compound to claim 3, of the formula ##STR24## wherein X 3 represents methyl, methoxy, ethoxy or acetyloxy, Z 2 represents methyl or phenyl, R 5 represents hydrogen, alkyl with 1 to 8 carbon atoms or benzyl, the nitrogen ring A 3 represents pyrrolidino or piperidino and the benzene ring D 1 is unsubstituted or substituted by nitro or 1 to 4 chlorine or bromine atoms.
Claim 6
Dependent Claim
24 words
A lactone compound according to claim 4, wherein the benzene ring D 1 is unsubstituted or contains four chlorine atoms or a nitro group.
Claim 7
Dependent Claim
35 words
A lactone compound according to claim 4, which is a mixture of two isomers wherein the phthalic anhydride residue is of the formula ##STR25## wherein one W is nitro and the other W is hydrogen.
Claim 8
Dependent Claim
35 words
A lactone compound according to claim 4, which is a mixture of two isomers wherein the phthalic anhydride residue is of the formula ##STR26## wherein one W is nitro and the other W is hydrogen.
Claim 9
Dependent Claim
18 words
A lactone compound according to claim 4, of the formula ##STR27## wherein W 1 is hydrogen or chlorine.
Claim 10
Dependent Claim
11 words
A lactone compound according to claim 8, wherein W1 is hydrogen.
Claim 11
Dependent Claim
11 words
A lactone compound according to claim 4, of the formula ##STR28##
Claim 12
Dependent Claim
11 words
A lactone compound according to claim 4, of the formula ##STR29##
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-09-05 | 1981-03-07 | 1981-09-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-09-05 | 1985-03-07 | 1985-09-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-09-05 | 1989-03-07 | 1989-09-06 | $7700.00 | Window Closed / Lapsed |