Patent US2782200A successfully refreshed from Google Patents.
US2782200A
Expired / Lapsed
US
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Process for preparing j-
Assignee: —
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Filing: —
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Granted: 1957-02-19
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Expires: 1974-02-19
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 22:57
CPC Classifications
C; C07; C07D; C07D451/00; C07D451/02; C07D451/04; C07D451/06; C07D451/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
87 words
A PROCESS FOR THE PREPARATION OF 3-(4''-CHLOROBENZHYDRYLOXY)-TROPANE HYDROCHLORIDE WHICH COMPRISES HEATING AT A TEMPERATURE OF 145*-155*C. A SOLUTION OF 3-TROPANOL IN XYLOL TO WHICH 4-CHLOROBENZHYDRYL CHLORIDE HAS BEEN ADDED, FILTERING, WASHING THE FILTRATE PRODUCED BY FILTERING, EXTRACTING THE WASHED FILTRATE WITH HYDROCHLORIC ACID, SEPARATING THE ACID EXTRACT FROM XYLOL LAYER THUS FORMED, ALKALINIZING THE ACID EXTRACT WITH POTASSIUM HYDROXIDE, EXTRACTING THE OILY BASE WHICH SEPARATES WITH BENZOL, EVAPORATING THE BENZOL, AND CONVERTING THE CRUDE PRODUCT RESULTING THEREFROM TO ITS HYDROCHLORIDE BY TREATING IT WILL ALCOHOLIC HYDROGEN CHLORIDE.
Claim 2
Dependent Claim
87 words
A PROCESS FOR THE PREPARATION OF 3-(4''-CHLOROBENZHYDRYLOXY)-TROPANE HYDROCHLORIDE WHICH COMPRISES HEATING AT A TEMPERATURE OF 145*-155*C. A SOLUTION OF 3-TROPANOL IN XYLOL TO WHICH 4-CHLOROBENZHYDRYL CHLORIDE HAS BEEN ADDED, FILTERING, WASHING THE FILTRATE PRODUCED BY FILTERING, EXTRACTING THE WASHED FILTRATE WITH HYDROCHLORIC ACID, SEPARATING THE ACID EXTRACT FROM XYLOL LAYER THUS FORMED, ALKALINIZING THE ACID EXTRACT WITH POTASSIUM HYDROXIDE, EXTRACTING THE OILY BASE WHICH SEPARATES WITH BENZOL, EVAPORATING THE BENZOL, AND CONVERTING THE CRUDE PRODUCT RESULTING THEREFROM TO ITS HYDROCHLORIDE BY TREATING IT WILL ALCOHOLIC HYDROGEN CHLORIDE.
References Cited (Backward Citations)
US2706198A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-02-19 | 1960-08-20 | 1961-02-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-02-19 | 1964-08-20 | 1965-02-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-02-19 | 1968-08-20 | 1969-02-19 | $7700.00 | Window Closed / Lapsed |