US4590005A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Some macrocyclic compounds and their preparation
Assignee: Individual
•
Filing: 1985-04-26
•
Granted: 1986-05-20
•
Expires: 2005-04-26
Abstract
Abstract The present invention relates to novel macrocyclic carbonyl compounds of the macrocyclic carbamate and lactone type, to chiral macrocyclic structures, to macrocyclic urea compounds and to macrocyclic thiolactones and to a process for the preparation of same. The process of the invention comprises reacting a stannoxane, silazane or silathiane compound with an activated carbonyl compound in an organic solvent at moderate temperature.
Inventors
- 👤 Abraham Shanzer
- 👤 Eduard Schwartz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 07:01
CPC Classifications
C; C07; C07D; C07D273/00; C07D257/00; C07D257/02; C07D323/00; C07D341/00
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
62 words
A process for the production of macrocyclic carbonyl compounds having 2-8 carbonyl groups and at least 4 carbonyl groups when the ring contains only oxygen hetero-atoms which comprises reacting a cyclic metolloid silazane compound and an isocyanate in an organic solvent to form a diurea derivative, said cyclic metalloid being devoid of functional groups apt to interact with the activated carbonyl derivative.
Claim 2
Dependent Claim
62 words
A process for the production of macrocyclic carbonyl compounds having 2-8 carbonyl groups and at least 4 carbonyl groups when the ring contains only oxygen hetero-atoms which comprises reacting a cyclic metolloid silazane compound and an isocyanate in an organic solvent to form a diurea derivative, said cyclic metalloid being devoid of functional groups apt to interact with the activated carbonyl derivative.
Claim 3
Dependent Claim
62 words
A process for the production of macrocyclic carbonyl compounds having 2-8 carbonyl groups and at least 4 carbonyl groups when the ring contains only oxygen hetero-atoms which comprises reacting a cyclic metalloid silazane compound with an acyl chloride in an organic solvent to form a polyamide, said cyclic metolloid being devoid of functional groups apt to interact with the activated carbonyl derivative.
Claim 4
Dependent Claim
62 words
A process for the production of macrocyclic carbonyl compounds having 2-8 carbonyl groups and at least 4 carbonyl groups when the ring contains only oxygen hetero-atoms which comprises reacting a cyclic metalloid silazane compound with an acyl chloride in an organic solvent to form a polyamide, said cyclic metolloid being devoid of functional groups apt to interact with the activated carbonyl derivative.
Claim 5
Dependent Claim
21 words
A process for producing a product of the formula ##STR2## which comprises reacting 1,3-diethyl-2,2-dimethyl-1,1,3-diaza-2-silacyclopentane and 1,6-diisocyanato hexane in an organic solvent.
Claim 6
Dependent Claim
21 words
A process for producing a product of the formula ##STR2## which comprises reacting 1,3-diethyl-2,2-dimethyl-1,1,3-diaza-2-silacyclopentane and 1,6-diisocyanato hexane in an organic solvent.
Claim 7
Dependent Claim
56 words
A process for the production of macrocylclic carbonyl compounds having at least 4 carbonyl groups of the formula ##STR3## wherein N is 1, 2, or 3 comprosing reacting a cyclic metalloid stannoxane derivative with propiolactone in an organic solvent, said cyclic metalloid derivative being devoid of functional groups apt to interact with the activated carbonyl derivatives.
Claim 8
Dependent Claim
56 words
A process for the production of macrocylclic carbonyl compounds having at least 4 carbonyl groups of the formula ##STR3## wherein N is 1, 2, or 3 comprosing reacting a cyclic metalloid stannoxane derivative with propiolactone in an organic solvent, said cyclic metalloid derivative being devoid of functional groups apt to interact with the activated carbonyl derivatives.
Claim 9
Dependent Claim
6 words
A compound of the formula ##STR4##
Claim 10
Dependent Claim
6 words
A compound of the formula ##STR4##
Claim 11
Dependent Claim
14 words
A compound of the formula ##STR5## wherein n=1, 2, 3, 4, 5 or 6.
Claim 12
Dependent Claim
14 words
A compound of the formula ##STR5## wherein n=1, 2, 3, 4, 5 or 6.
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) | 1989-05-19 | 1989-11-18 | 1990-05-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-05-19 | 1993-11-18 | 1994-05-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-05-19 | 1997-11-18 | 1998-05-20 | $7700.00 | Window Closed / Lapsed |