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US3759977A
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Method for preparing tetra-n,n,n{40 ,n{40 -(2-hydroxyethyl)-ethylenediamine tetranitrate and salts thereof
Assignee: Individual
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Filing: 1971-10-07
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Granted: 1973-09-18
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Expires: 1991-10-07
Abstract
Abstract This invention relates to a method for preparing tetra-N,N,N'', N''-(2-hydroxyethyl)-ethylenediamine tetranitrate of the general formula (I), and salts thereof, wherein the reaction is provided between a haloethyl-nitrate and ethylenediamine according to the scheme: WHEREIN R is a halogen, both in the presence and in the absence of a solvent, at a temperature between -5*C and 100*C.
Inventors
- 👤 R Pessina
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 14:53
CPC Classifications
C; C07; C07C; C07C201/00; C07C201/02; C07C277/00; C07C277/08
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
20 words
A method according to claim 1, wherein the reaction is carried out in the presence of a hydrogen halide accepter.
Claim 2
Dependent Claim
48 words
A method according to claim 1, wherein the reaction is carried out in the presence of an alkaline carbonate and the said product is recovered as a salt by adding a mineral or organic acid to a solution in an organic solvent of said product as its base.
Claim 3
Dependent Claim
65 words
A method according to claim 1 wherein the reaction is carried out in the presence of an alkaline hydroxide or carbonate, in the presence of a solvent selected from the group of linear or branched primary, secondary or tertiary aliphatic alcohols having up to 5 carbon atoms; glycols; ethers of glycols; aromatic alicyclic hydrocarbons; 5 or 6 membered saturated heterocycles containing one or two hetero-atoms.
Claim 4
Dependent Claim
22 words
A method according to claim 1, wherein the reaction is carried out in the presence of a hydrogen halide accepting heterocyclic base.
References Cited (Backward Citations)
US2864853A
Cited
US2957021A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-09-17 | 1977-03-19 | 1977-09-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-09-17 | 1981-03-19 | 1981-09-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-09-17 | 1985-03-19 | 1985-09-18 | $7700.00 | Window Closed / Lapsed |