US4599408A
Expired / Lapsed
US
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Perylene-3,4,9,10-tetracarboxylic acid monoanhydride monoimides
Assignee: Hoechst AG
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Filing: 1984-04-11
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Granted: 1986-07-08
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Expires: 2004-04-11
Abstract
Abstract Compounds of the formula <IMAGE> in which R denotes hydrogen, hydroxyl, amino or optionally substituted alkyl, X denotes chlorine or bromine and n is a number from zero to 4, are obtained from the corresponding mono-alkali metal salts of perylene-3,4,9,10-tetracarboxylic acid monoanhydrides by reaction with compounds of the formula R-NH2, in which R has the above meaning, at 0 DEG -130 DEG C. The compounds are colorants or starting materials for colorants.
Inventors
- 👤 Ernst Spietschka
- 👤 Helmut Troster
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 14:28
CPC Classifications
C; C07; C07D; C07D491/00; C07D491/02; C07D491/06; C09; C09B; C09B5/00; C09B5/62
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
100 words
A compound of the formula ##STR21## in which R is hydrogen, amino, cycloalkyl of 4 to 8 carbon atoms, or alkyl of 1 to 8 carbon atoms which is unsubstituted or substituted by cycloalkyl of 4 to 8 carbon atoms, cyano, hydroxy, carbamoyl, lower dialkylamino, morpholyl, phenyl which is unsubstituted or substituted by halogen or lower alkyl, or alkoxy of 1 to 8 carbon atoms which is unsubstituted or substituted by lower alkoxy; X is chlorine or bromine; n is a number from 0 to 2; and R is not hydrogen or unsubstituted alkyl when n is the number 0.
Claim 2
Dependent Claim
100 words
A compound of the formula ##STR21## in which R is hydrogen, amino, cycloalkyl of 4 to 8 carbon atoms, or alkyl of 1 to 8 carbon atoms which is unsubstituted or substituted by cycloalkyl of 4 to 8 carbon atoms, cyano, hydroxy, carbamoyl, lower dialkylamino, morpholyl, phenyl which is unsubstituted or substituted by halogen or lower alkyl, or alkoxy of 1 to 8 carbon atoms which is unsubstituted or substituted by lower alkoxy; X is chlorine or bromine; n is a number from 0 to 2; and R is not hydrogen or unsubstituted alkyl when n is the number 0.
Claim 3
Dependent Claim
62 words
The compound, as claimed in claim 1, in which R is hydrogen, amino or alkyl of 1 to 8 carbon atoms which is substituted by by hydroxy, lower dialkylamino, morpholyl, alkoxy of 1 to 8 carbon atoms or phenyl which is unsubstituted or substituted by halogen or lower alkyl; X is chlorine or bromine; n is a number from 0 to 2.
Claim 4
Dependent Claim
71 words
The compound as claimed in claim 1 in which R is amino, cycloalkyl of 4 to 8 carbon atoms or alkyl of 1 to 8 carbon atoms which is substituted by cycloalkyl of 4 to 8 carbon atoms, cyano, hydroxy, carbomoyl, lower dialkylamino, morpholyl, phenyl which is unsubstituted or substituted by halogen or lower alkyl, or alkoxy of 1 to 8 carbon atoms which is unsubstituted or substituted by lower alkoxy.
Claim 5
Dependent Claim
14 words
The compound as claimed in claim 1 in which n is 1 or 2.
References Cited (Backward Citations)
DE411217C
Cited
US4250079A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-07-07 | 1990-01-06 | 1990-07-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-07-07 | 1994-01-06 | 1994-07-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-07-07 | 1998-01-06 | 1998-07-08 | $7700.00 | Window Closed / Lapsed |