Patent US3998951A successfully refreshed from Google Patents.
US3998951A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Substituted 2-arylquinazolines as fungicides
Assignee: FMC Corp
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Filing: 1974-03-13
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Granted: 1976-12-21
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Expires: 1994-03-13
Abstract
Abstract Fungicidal compositions based on substituted 2-arylquinazolines exhibit antifungal activity particularly against rusts and mildews. The synthesis of new compounds is described and the utility of antifungal compositions is exemplified.
Inventors
- 👤 Wayne Nelson Harnish
- 👤 Arthur Albert Ramsey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 12:53
CPC Classifications
C; C07; C07D; C07D239/00; C07D239/70; C07D239/72; C07D239/86; C07D239/93; C07D239/88; C07D239/91
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
75 words
A fungicidal composition which comprises, as active ingredient, a fungicidally effective amount of a quinazoline of the formula: ##SPC4## wherein Ar is phenyl or thienyl; Y is halogen or alkyl of 1 to 4 carbons; and n is 0 or 1; with the proviso that when Ar is phenyl and Y is chlorine, Y is in the 3- or 4-position of the phenyl ring; in admixture with an agriculturally acceptable carrier, and a surface-active agent.
Claim 2
Dependent Claim
75 words
A fungicidal composition which comprises, as active ingredient, a fungicidally effective amount of a quinazoline of the formula: ##SPC4## wherein Ar is phenyl or thienyl; Y is halogen or alkyl of 1 to 4 carbons; and n is 0 or 1; with the proviso that when Ar is phenyl and Y is chlorine, Y is in the 3- or 4-position of the phenyl ring; in admixture with an agriculturally acceptable carrier, and a surface-active agent.
Claim 3
Dependent Claim
11 words
The fungicidal composition of claim 1 wherein the compound is 4-chloro-2-(4-methylphenyl)quinazoline.
Claim 4
Dependent Claim
11 words
The fungicidal composition of claim 1 wherein the compound is 4-chloro-2-(4-chlorophenyl)quinazoline.
Claim 5
Dependent Claim
11 words
The fungicidal composition of claim 1, wherein the compound is 4-chloro-2-(4-tert-butylphenyl)quinazoline.
Claim 6
Dependent Claim
11 words
The fungicidal composition of claim 1 wherein the compound is 4-chloro-2-(2-thienyl)quinazoline.
Claim 7
Independent Claim
71 words
A method of combating plant-infesting pathogenic fungi which comprises applying to the plants a fungicidally effective amount of a quinazoline of the formula: ##SPC5## wherein Ar is phenyl, thienyl or furyl; X is chlorine, bromine or mercapto radical; Y is halogen, alkyl of 1 to 4 carbons or alkoxy of 1 to 4 carbons; Z is alkyl of 1 to 4 carbons; and m and n are each 0 or 1.
Claim 8
Independent Claim
71 words
A method of combating plant-infesting pathogenic fungi which comprises applying to the plants a fungicidally effective amount of a quinazoline of the formula: ##SPC5## wherein Ar is phenyl, thienyl or furyl; X is chlorine, bromine or mercapto radical; Y is halogen, alkyl of 1 to 4 carbons or alkoxy of 1 to 4 carbons; Z is alkyl of 1 to 4 carbons; and m and n are each 0 or 1.
Claim 9
Dependent Claim
25 words
The method of claim 6 wherein X is chlorine or bromine, Y is halogen or alkyl of 1 to 4 carbons, and m is 0.
Claim 10
Dependent Claim
10 words
The method of claim 6 wherein the compound is 4-chloro-2-phenylquinazoline.
Claim 11
Dependent Claim
10 words
The method of claim 6 wherein the compound is 4-chloro-2-(4-methylphenyl)quinazoline.
Claim 12
Dependent Claim
10 words
The method of claim 6 wherein the compound is 4-chloro-2-(4-chlorophenyl)quinazoline.
Claim 13
Dependent Claim
10 words
The method of claim 6 wherein the compound is 4-chloro-2-(4-tert-butylphenyl)quinazoline.
Claim 14
Dependent Claim
10 words
The method of claim 6 wherein the compound is 4-chloro-2-(2-thienyl)quinazoline.
Claim 15
Dependent Claim
10 words
The method of claim 6 wherein the compound is 4-bromo-2-phenylquinazoline.
References Cited (Backward Citations)
US1880447A
Cited
US3755582A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-12-21 | 1980-06-21 | 1980-12-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-12-21 | 1984-06-21 | 1984-12-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-12-21 | 1988-06-21 | 1988-12-21 | $7700.00 | Window Closed / Lapsed |