US4171214A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pyrazine-2-ylmethyl-ketones and their fungicidal use
Assignee: Imperial Chemical Industries Ltd
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Filing: 1977-12-19
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Granted: 1979-10-16
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Expires: 1997-12-19
Abstract
Abstract A pyrazine compound of the formula: <IMAGE> wherein R1 and R2 are hydrogen, or optionally-substituted hydrocarbyl, aryloxy or alkoxy and R2, additionally may be pyridyl, thienyl or furyl; R3 and R4 are H, alkyl or aryl or together form a bridging group; Z is: <IMAGE> where R5 is H, alkyl or aryl; and functional derivatives and salts thereof. The compounds are useful for combating fungal or bacterial diseases in plants.
Inventors
- 👤 Sugavanam Balasubramanyan
- 👤 Margaret C. Shephard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 08:07
CPC Classifications
C; C07; C07D; C07D241/00; C07D241/02; C07D241/10; C07D241/12; A; A01; A01N; A01N43/00; A01N43/48; A01N43/60; C07D241/36; C07D241/38; C07D241/40; C07D241/42
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
52 words
A pyrazine compound having the formula: ##STR53## wherein Z is C═O; R 1 is hydrogen, allyl, C 1 to C 4 alkyl, phenyl, benzyl, phenoxy, nitrobenzyl, mono- or -di, fluoro- or chloro-, -benzyl or -phenoxy; R 2 is C 1 to C 4 alkyl, phenyl, or halophenyl; and and acid-addition salts thereof.
Claim 2
Dependent Claim
52 words
A pyrazine compound having the formula: ##STR53## wherein Z is C═O; R 1 is hydrogen, allyl, C 1 to C 4 alkyl, phenyl, benzyl, phenoxy, nitrobenzyl, mono- or -di, fluoro- or chloro-, -benzyl or -phenoxy; R 2 is C 1 to C 4 alkyl, phenyl, or halophenyl; and and acid-addition salts thereof.
Claim 3
Dependent Claim
30 words
A pyrazine compound according to claim 1 wherein Z is C═O; R 1 is fluoro-, chloro-, or dichloro-, -phenoxy or -benzyl; and R 2 is phenyl, halophenyl, propyl or butyl.
Claim 4
Dependent Claim
36 words
A method for combating fungal or bacterial diseases in plants which comprises treating the plant, seed of the plant, or the locus surrounding the seed or plant with a pyrazine compound as claimed in claim 1.
Claim 5
Dependent Claim
24 words
A plant pesticidal or growth-regulating composition comprising, as an active ingredient, a pyrazine compound as claimed in claim 1; and a carrier or diluent.
Claim 6
Dependent Claim
37 words
A method of regulating the growth of a plant, which method comprises applying to the plant, to seed of the plant, or to the locus of the plant or seed, a compound as claimed in claim 1.
Claim 7
Dependent Claim
32 words
A pyrazine compound of the formula: ##STR54## wherein Z is C═O, R 1 is benzyl, chlorobenzyl, fluorobenzyl, nitrobenzyl, or trifluoromethylbenzyl; and R 2 is C 1 to C 4 alkyl or phenyl.
Claim 8
Dependent Claim
32 words
A pyrazine compound of the formula: ##STR54## wherein Z is C═O, R 1 is benzyl, chlorobenzyl, fluorobenzyl, nitrobenzyl, or trifluoromethylbenzyl; and R 2 is C 1 to C 4 alkyl or phenyl.
Claim 9
Dependent Claim
16 words
A compound according to claim 6 wherein R 1 is chlorobenzyl and R 2 is butyl.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-10-15 | 1983-04-16 | 1983-10-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-10-15 | 1987-04-16 | 1987-10-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-10-15 | 1991-04-16 | 1991-10-16 | $7700.00 | Window Closed / Lapsed |