US3985735A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pyrimido(4,3-b)(1,3)thiazin-6-ones
Assignee: Shell USA Inc
•
Filing: 1975-06-30
•
Granted: 1976-10-12
•
Expires: 1995-06-30
Abstract
Abstract Novel insecticidal 3,4,7,8-tetrahydro-9-nitro-2H,6H-pyrimido(4,3,-b)(1,3)thiazin-6-ones.
Inventors
- 👤 James E. Powell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 20:24
CPC Classifications
C; C07; C07D; C07D513/00; C07D513/02; C07D513/04
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
135 words
A compound of the formula ##EQU1## wherein Y is oxygen or sulfur, R contains up to 20 carbon atoms and is (a) straight-chain or branched-chain alkyl or alkenyl; or (b) cycloalkyl, phenyl, phenalkyl, phenylcycloalkyl, or these substituted by one or more of halogen, straight-chain or branched-chain alkyl or alkoxy of from one to six carbon atoms, nitro or cyano; and X is ##EQU2## wherein R 1 is hydrogen; phenyl or phenyl substituted as indicated above; vinyl, mono- or polyhalovinyl; ethinyl or 2-phenylethinyl, optionally substituted on the ring as indicated above; or is ##EQU3## wherein each of R 4 independently is methyl, halogen or phenyl optionally substituted as indicated above; R 2 and R 3 each is hydrogen, straight-chain or branched-chain alkyl of from 1 to ten carbon atoms, phenyl or phenyl substituted as indicated above.
Claim 2
Dependent Claim
135 words
A compound of the formula ##EQU1## wherein Y is oxygen or sulfur, R contains up to 20 carbon atoms and is (a) straight-chain or branched-chain alkyl or alkenyl; or (b) cycloalkyl, phenyl, phenalkyl, phenylcycloalkyl, or these substituted by one or more of halogen, straight-chain or branched-chain alkyl or alkoxy of from one to six carbon atoms, nitro or cyano; and X is ##EQU2## wherein R 1 is hydrogen; phenyl or phenyl substituted as indicated above; vinyl, mono- or polyhalovinyl; ethinyl or 2-phenylethinyl, optionally substituted on the ring as indicated above; or is ##EQU3## wherein each of R 4 independently is methyl, halogen or phenyl optionally substituted as indicated above; R 2 and R 3 each is hydrogen, straight-chain or branched-chain alkyl of from 1 to ten carbon atoms, phenyl or phenyl substituted as indicated above.
Claim 3
Dependent Claim
23 words
A compound according to claim 1 wherein Y is oxygen, R is alkyl of 1 to 4 carbon atoms and X is ##STR22##
Claim 4
Dependent Claim
23 words
A compound according to claim 1 wherein Y is oxygen, R is alkyl of 1 to 4 carbon atoms and X is ##STR23##
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-10-12 | 1980-04-12 | 1980-10-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-10-12 | 1984-04-12 | 1984-10-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-10-12 | 1988-04-12 | 1988-10-12 | $7700.00 | Window Closed / Lapsed |