US5026894A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Compound for use in the synthesis of semiconducting polymers with perpendicularly arranged cores and method of synthesizing said compound
Assignee: University of South Carolina
•
Filing: 1990-03-12
•
Granted: 1991-06-25
•
Expires: 2010-03-12
Abstract
Abstract The stereochemical structure necessary for preparation of perpendicularly arranged cores is provided by a compound of the formula ##STR1## This compound can be synthesized by the reaction of ##STR2## with bromine in the presence of FeCl 3 .
Inventors
- 👤 James M. Tour
- 👤 Ruilian Wu
- 👤 Jeffry S. Schumm
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 10:44
CPC Classifications
H; H01; H01B; H01B1/00; H01B1/06; H01B1/12; H01B1/124; H01B1/128; C; C07; C07C; C07C17/00; C07C17/093; C07C17/10; C07C17/12; C07C25/00; C07C25/18; C07C25/22; H01B1/127; C07C2603/00; C07C2603/93; C07C2603/94
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
58 words
A compound of the formula ##STR9## wherein X is a reactive group through which conducting or pro-conducting polymeric subunits can be bonded to the compound selected from the group consisting of bromine, iodine, --O--SO 2 --CF 3 , and reactive groups comprising one or more polymer subunits terminally substituted with bromine, iodine or --O--SO 2 --CF 3 .
Claim 2
Dependent Claim
58 words
A compound of the formula ##STR9## wherein X is a reactive group through which conducting or pro-conducting polymeric subunits can be bonded to the compound selected from the group consisting of bromine, iodine, --O--SO 2 --CF 3 , and reactive groups comprising one or more polymer subunits terminally substituted with bromine, iodine or --O--SO 2 --CF 3 .
Claim 3
Dependent Claim
10 words
A compound according to claim 1, wherein X is bromine.
Claim 4
Dependent Claim
19 words
A compound according to claim 1, wherein X is (phenyl) n Br and n is zero or an integer.
Claim 5
Independent Claim
33 words
A method of preparing a compound of the formula ##STR10## comprising the steps of (a) reacting a compound of the formula ##STR11## with bromine in the presence of FeCl 3 as a catalyst.
Claim 6
Independent Claim
33 words
A method of preparing a compound of the formula ##STR10## comprising the steps of (a) reacting a compound of the formula ##STR11## with bromine in the presence of FeCl 3 as a catalyst.
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) | 1994-06-24 | 1994-12-24 | 1995-06-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-06-24 | 1998-12-24 | 1999-06-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-06-24 | 2002-12-24 | 2003-06-25 | $7700.00 | Window Closed / Lapsed |