← Back to Patent Explorer
EP0033716A1 Expired / Lapsed EP ⏱️ 0.0 years remaining

Chromogenic quinazoline compounds, processes for their preparation and their use as colour constituents in pressure-sensitive or heat-sensitive recording materials

Assignee: Novartis AG
•
Filing: 1981-01-26
•
Granted: —
•
Expires: 2001-01-26
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract Translated from German Chromogene Chinazolinverbindungen der Formel <IMAGE> worin Y einen aminosubstituierten Phenylrest der Formel <IMAGE> oder einen 3-Carbozolylrest der Formel <IMAGE> und Z Wasserstoff, R1, -OR1', -SR'1 oder -NR2R3 bedeuten, wobei R Wasserstoff, unsubstituiertes oder durch Halogen, Hydroxy, Cyano oder Niederalkoxy substituiertes Alkyl, Alkenyl, Acyl, Benzyl oder durch Halogen, Nitro, Niederalkyl, Niederalkoxy substituiertes Benzyl, R1 und R'1 je unsubstituiertes oder durch Cyano oder Niederalkoxy substituiertes Alkyl, Cycloalkyl, unsubstituiertes oder substituiertes Aryl oder Aralkyl oder einen unsubstituierten oder substituierten heterocyclischen Rest und R'1 auch Halogenalkyl sein kann, R2, R3, X1 und X2 unabhängig voneinander, Wasserstoff, unsubstituiertes oder durch Halogen, Hydroxy, Cyano oder Niederalkoxy substituiertes Alkyl, Cycloalkyl, Phnyl, Benzyl oder durch Halogen, Nitro, Cyano, Niederalkyl, Niederalkoxy oder Niederalkoxycarbonyl substituiertes Phenyl oder Benzyl und R2 auch Acyl oder die Substituentenpaare (R2 und R3) und (X1 und X2), unabhängig voneinander, je zusammen mit dem sie verbindenden Stickstoffatom einen 5- oder 6-gliedrigen heterocyclischen Rest, Chromogenic quinazoline compounds of the formula <IMAGE> in which Y is an amino-substituted phenyl radical of the formula <IMAGE> or a 3-carbozolyl radical of the formula <IMAGE> and Z is hydrogen, R1, -OR1 ', -SR'1 or -NR2R3, where R is hydrogen, alkyl, alkenyl, acyl, benzyl or benzyl substituted by halogen, nitro, lower alkyl, lower alkoxy, R1 and R'1 each unsubstituted or substituted by cyano or lower alkoxy alkyl, cycloalkyl, unsubstituted or substituted Aryl or aralkyl or an unsubstituted or substituted heterocyclic radical and R'1 can also be haloalkyl, R2, R3, X1 and X2 independently of one another, hydrogen, unsubstituted or substituted by halogen, hydroxyl, cyano or lower alkoxy, alkyl, cycloalkyl, phenyl, benzyl or phenyl or benzyl and R2 also substituted by halogen, nitro, cyano, lower alkyl, lower alkoxy or lower alkoxycarbonyl Acyl or the substituent pairs (R2 and R3) and (X1 and X2), independently of one another, each together with the nitrogen atom connecting them a 5- or 6-membered heterocyclic radical,

Inventors

  • 👤 Ian John Dr. Fletcher

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-11-03 14:40
CPC Classifications
C; C07; C07D; C07D239/00; C07D239/70; C07D239/72; C07D239/86; C07D239/94; B; B41; B41M; B41M5/00; B41M5/124; B41M5/132; B41M5/136; B41M5/26; B41M5/30; B41M5/323; C07D239/74; C07D239/88; C07D239/91; C09; C09B; C09B57/00; Y; Y10; Y10S; Y10S428/00; Y10S428/913; Y10S428/914

Claims Analysis

Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.

References Cited (Backward Citations)

DE1172266B Cited
DE1795748A1 Cited

USPTO Annuity & Maintenance Windows

Maintenance schedule is calculated for granted US utility patents.

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag