US4554362A
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Bis-crown-ether derivatives and their use
Assignee: Shimadzu Corp
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Filing: 1985-03-04
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Granted: 1985-11-19
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Expires: 2005-03-04
Abstract
Abstract Bis-crown-ether derivatives having such configuration that the two crown rings may easily overlap spatially, holding a potassium or the like ion between them, and ion-selective membranes used for said bis-crown-ether derivatives as neutral carrier, which are useful as an ion sensor and are superior to the ion-selective membrane containing valinomycin.
Inventors
- 👤 Toshiyuki Shono
- 👤 Keiichi Kimura
- 👤 Takumi Maeda
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 12:24
CPC Classifications
C; C07; C07D; C07D323/00; G; G01; G01N; G01N27/00; G01N27/26; G01N27/28; G01N27/30; G01N27/333; G01N27/3335
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
47 words
A bis-crown-ether derivative of the general formula: ##STR16## in which A represents a divalent organic group which is able to assume a configuration such that the two crown rings can overlap spatially and hold a monovalent metal ion having an ionic radius of 1.3-2.1 Å between them.
Claim 2
Dependent Claim
47 words
A bis-crown-ether derivative of the general formula: ##STR16## in which A represents a divalent organic group which is able to assume a configuration such that the two crown rings can overlap spatially and hold a monovalent metal ion having an ionic radius of 1.3-2.1 Å between them.
Claim 3
Dependent Claim
50 words
A bis-crown-ether derivative of claim 1 in which the divalent organic group A is of the formula: --Z--Y--Z-- in which Z represents a radical selected from the group consisting of --CH 2 O--CO--, --CO--O--, --CH 2 O--, and --CONH-- and Y represents a divalent aliphatic group which may be substituted.
Claim 4
Dependent Claim
86 words
The bis-crown-ether derivative of claim 2 in which Y is selected from the group consisting of: ##STR17## wherein R 1 and R 2 each represent a hydrogen atom or an alkyl group of C 1 -C 20 , p and q each represent O or an integer of 1, 2, or 3, R 3 and R 4 assume a mutual cis-configuration and each represents a halogen atom, a lower alkyl group, or an aryl group, and the two bonds of the cyclohexylene group are at cis-position.
Claim 5
Dependent Claim
48 words
The bis-crown-ether derivative of claim 1 represented by the formula: ##STR18## in which R 1 and R 2 each represent a hydrogen atom or an alkyl group of C 1 -C 20 , and p and q each represent O or an integer of 1, 2 or 3.
Claim 6
Dependent Claim
48 words
The bis-crown-ether derivative of claim 1 represented by the formula: ##STR19## in which R 1 and R 2 each represent a hydrogen atom or an alkyl group of C 1 -C 20 , and p and q each represent O or an integer of 1, 2, or 3.
Claim 7
Dependent Claim
47 words
The bis-crown-ether derivative of claim 1 represented by the formula: ##STR20## in which R 1 and R 2 each represent a hydrogen atom or an alkyl group of C 1 -C 20 , and p and q represent O or an integer of 1, 2, or 3.
Claim 8
Dependent Claim
44 words
The bis-crown-ether derivative of claim 1 represented by the general formula: ##STR21## in which z represents a radical selected from the group consisting of --CH 2 O--CO--, --CO--O--, --CH 2 O--, and --CONH--, wherein the two bonds in the cyclohexylene group are at cis-position.
Claim 9
Dependent Claim
56 words
The bis-crown-ether derivative of claim 1 represented by the formula: ##STR22## in which z represents a radical selected from the group consisting of --CH 2 O--CO--, --CO--O--, --CH 2 O--, and --CONH--, and R 3 and R 4 assume a mutual cis-configuration and each represents a halogen atom, a lower alkyl group, or an aryl group.
Claim 10
Dependent Claim
10 words
The bis-crown-ether derivative of claim 4 of the formula: ##STR23##
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-11-18 | 1989-05-20 | 1989-11-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-11-18 | 1993-05-20 | 1993-11-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-11-18 | 1997-05-20 | 1997-11-19 | $7700.00 | Window Closed / Lapsed |