US3669981A
Expired / Lapsed
US
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S-chloromethyl compounds of 2-mercaptobenzothiazoles, 2-mercaptobenzoxazoles, and 2-mercaptobenzimidazoles
Assignee: Buckman Laboratories International Inc
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Filing: 1969-10-30
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Granted: 1972-06-13
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Expires: 1989-10-30
Abstract
Abstract S-chloromethyl compounds of 2-mercaptobenzothiazoles, 2mercaptobenzoxazoles, and 2- mercaptobenzimidazoles prepared by reacting a metal salt of 2-mercaptobenzothiazole, 2mercaptobenzoxazole, 2- mercaptobenzimidazoles, or substituted compounds thereof with bromochloromethane in an aqueous system in the presence of a surfactant are useful as intermediates.
Inventors
- 👤 John D Pera
- 👤 Fred W Raths
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 20:08
CPC Classifications
C; C07; C07D; C07D263/00; C07D263/52; C07D263/54; C07D263/58; C07D235/00; C07D235/02; C07D235/04; C07D235/24; C07D235/28; C07D277/00; C07D277/60; C07D277/62; C07D277/68; C07D277/70; C07D277/74
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
10 words
The process of claim 1 wherein the surfactant is nonionic.
Claim 2
Dependent Claim
10 words
The process of claim 1 wherein the surfactant is anionic.
Claim 3
Dependent Claim
11 words
The process of claim 1 wherein the surfactant is dodecylphenoxypolyethoxy ethanol.
Claim 4
Dependent Claim
13 words
The process of claim 1 wherein X is sulfur and R is hydrogen.
Claim 5
Dependent Claim
13 words
The process of claim 1 wherein X is oxygen and R is hydrogen.
Claim 6
Dependent Claim
13 words
The process of claim 1 wherein X is imino and R is hydrogen.
Claim 7
Dependent Claim
19 words
The process of claim 1 wherein X is sulfur and R is hydrogen and the surfactant is dodecylphenoxypolyethoxy ethanol.
Claim 8
Dependent Claim
19 words
The process of claim 1 wherein x is oxygen and R is hydrogen and the surfactant is dodecylphenoxypolyethoxy ethanol.
Claim 9
Dependent Claim
19 words
The process of claim 1 wherein X is imino and R is hydrogen and the surfactant is dodecylphenoxypolyethoxy ethanol.
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) | 1975-06-13 | 1975-12-13 | 1976-06-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-06-13 | 1979-12-13 | 1980-06-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-06-13 | 1983-12-13 | 1984-06-13 | $7700.00 | Window Closed / Lapsed |