Patent US3092652A successfully refreshed from Google Patents.
US3092652A
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US
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Preparation of aryldihaloboranes and poly (dihaloborano) benzenes
Assignee: American Potash and Chemical Corp
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Filing: 1959-01-16
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Granted: 1963-06-04
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Expires: 1979-01-16
Abstract
No abstract record available.
Inventors
- 👤 David R Stern
- 👤 Lynds Lahmer
- 👤 Robert M Washburn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 13:01
CPC Classifications
C; C07; C07F; C07F5/00; C07F5/02; C07F5/025; Y; Y02; Y02P; Y02P20/00; Y02P20/50; Y02P20/582
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
108 words
A PROCESS FOR THE PREPARATION OF COMPOUNDS OF THE GENERAL FORMULA AR(BX2)N WHEREIN N IS AN INTEGER BETWEEN 1 AND 3, X IS HALOGEN AND AR IS SELECTED FROM THE CLASS CONSISTING OF ARYL AND HALOARYL COMPRISING: FORMING A MIXTURE OF A FRIEDEL-CRAFTS CATALYST AND A BORON TRIHALIDE OF THE GENERAL FORMULA BX3, THE MOLAR RATIO OF SAID CATALYST TO SAID BX3 BEING WITHIN THE RANGE 0.0374-0.0125, ADDING THERETO A QUANTITY OF THE COMPOUND OF THE FORMULA ARHN, HEATING THE MIXTURE SO FORMED WHEREBY TO REACT SAID BX3 AND ARHN TO FORM SAID AR(BX2)N AND GASEOUS HX AND WITHDRAWING SAID GASEOUS HX THEREFROM AS SAID HX IS FORMED.
Claim 2
Dependent Claim
108 words
A PROCESS FOR THE PREPARATION OF COMPOUNDS OF THE GENERAL FORMULA AR(BX2)N WHEREIN N IS AN INTEGER BETWEEN 1 AND 3, X IS HALOGEN AND AR IS SELECTED FROM THE CLASS CONSISTING OF ARYL AND HALOARYL COMPRISING: FORMING A MIXTURE OF A FRIEDEL-CRAFTS CATALYST AND A BORON TRIHALIDE OF THE GENERAL FORMULA BX3, THE MOLAR RATIO OF SAID CATALYST TO SAID BX3 BEING WITHIN THE RANGE 0.0374-0.0125, ADDING THERETO A QUANTITY OF THE COMPOUND OF THE FORMULA ARHN, HEATING THE MIXTURE SO FORMED WHEREBY TO REACT SAID BX3 AND ARHN TO FORM SAID AR(BX2)N AND GASEOUS HX AND WITHDRAWING SAID GASEOUS HX THEREFROM AS SAID HX IS FORMED.
Claim 3
Dependent Claim
30 words
THE PROCESS OF CLAIM 1 WHEREIN THE AR(BX2)N SO FORMED IS REACTED WITH A LOWER ALKYL ALCOHOL OF THE FORMULA ROH WHERE R IS LOWER ALKYL TO FORM AR B(OR)2!N.
References Cited (Backward Citations)
US2900414A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-06-03 | 1966-12-03 | 1967-06-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-06-03 | 1970-12-03 | 1971-06-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-06-03 | 1974-12-03 | 1975-06-04 | $7700.00 | Window Closed / Lapsed |