← Back to Patent Explorer
US4466915A Expired / Lapsed US ⏱️ 0.0 years remaining

Non-catalytic ketoform syntheses

Assignee: Noveon IP Holdings Corp
•
Filing: 1982-09-29
•
Granted: 1984-08-21
•
Expires: 2002-09-29
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract A known base-induced catalytic ketoform synthesis can now be carried out without sacrificing the directivity of the prior art process, but non-catalytically, that is, in the absence of the phase transfer catalyst heretofore required, provided the ketone/araldehyde is present in large excess from about 2 to about 25 times the calculated molar amount necessary to yield the reaction product. This synthesis obviates the problems of separating and recovering a phase transfer catalyst used in the prior art process.

Inventors

  • 👤 John T. Lai

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-01 03:41
CPC Classifications
C; C07; C07D; C07D401/00; C07D401/02; C07D401/04; C07D211/00; C07D211/04; C07D211/06; C07D211/36; C07D211/56; C07D211/58; C07D241/00; C07D241/02; C07D241/06; C07D241/08

Claims Analysis

Total Claims: 15
Claim 1
Independent Claim 148 words
A method for introducing an amine substituent into a carbonyl-containing compound comprising, contacting a primary or secondary amine reactant compound which is an amine nucleophilic agent with said carbonyl-containing compound selected from the group consisting of a saturated acyclic monoketone, a saturated cyclic monoketone and, benzaldehyde, optionally substituted with lower alkyl having from 1 to about 6 carbon atoms, in the absence of a phase transfer catalyst and a primary alcohol solvent, and in the presence of a base and sufficient haloform to provide a reaction product selected from the group consisting of a monoazacycloalkanone, diazacycloalkanone, alpha-aminoacetamide, and alpha-amino acetate; said carbonyl-containing compound being present in an amount from about 2 to about 25 times greater than the molar amount required to react with said reactant compound; maintaining the temperature during reaction below that which degrades said reactant compound; and, recovering said reaction product having said amine substituent.
Claim 2
Independent Claim 148 words
A method for introducing an amine substituent into a carbonyl-containing compound comprising, contacting a primary or secondary amine reactant compound which is an amine nucleophilic agent with said carbonyl-containing compound selected from the group consisting of a saturated acyclic monoketone, a saturated cyclic monoketone and, benzaldehyde, optionally substituted with lower alkyl having from 1 to about 6 carbon atoms, in the absence of a phase transfer catalyst and a primary alcohol solvent, and in the presence of a base and sufficient haloform to provide a reaction product selected from the group consisting of a monoazacycloalkanone, diazacycloalkanone, alpha-aminoacetamide, and alpha-amino acetate; said carbonyl-containing compound being present in an amount from about 2 to about 25 times greater than the molar amount required to react with said reactant compound; maintaining the temperature during reaction below that which degrades said reactant compound; and, recovering said reaction product having said amine substituent.
Claim 3
Dependent Claim 13 words
The method of claim 1 wherein said base is an alkali metal hydroxide.
Claim 4
Dependent Claim 28 words
The method of claim 2 wherein said alkali metal hydroxide is present in a molar amount about three times greater than the molar amount of said reactant compound.
Claim 5
Dependent Claim 38 words
The method of claim 1 wherein said acyclic ketone is a lower alkyl ketone having from 2 to about 6 carbon atoms, and said cyclic ketone is a cycloalkanone having from 5 to about 8 ring carbon atoms.
Claim 6
Dependent Claim 28 words
The method of claim 1 wherein said primary or secondary amine having from 1 to about 24 carbon atoms wherein functional groups may be substituted with alkyl groups.
Claim 7
Dependent Claim 16 words
The method of claim 3 wherein said alkali metal hydroxide is in solid finely divided form.
Claim 8
Independent Claim 139 words
A method for preparing a polysubstituted 2-keto-1,4-diazacycloalkane reaction product from an acyclic or cyclic 1,2-diamine or 1,3-diamine, comprising, contacting said 1,2-diamine or 1,3-diamine with a carbonyl-containing compound selected from the group consisting of a saturated acyclic monoketone, a saturated cyclic monoketone and, benzaldehyde, optionally substituted with lower alkyl having from 1 to about 6 carbon atoms, present in an amount from about 2 to about 25 times greater than the molar amount required to react with said diamine, in the absence of a phase transfer catalyst and a primary alcohol solvent, and in the presence of a base and sufficient haloform to provide said reaction product; maintaining the temperature of reaction in the range from above about the freezing point of the reaction mass up to about the reflux temperature of said reaction mass; and, recovering said polysubstituted 2-keto-1,4-diazacycloalkanone.
Claim 9
Independent Claim 139 words
A method for preparing a polysubstituted 2-keto-1,4-diazacycloalkane reaction product from an acyclic or cyclic 1,2-diamine or 1,3-diamine, comprising, contacting said 1,2-diamine or 1,3-diamine with a carbonyl-containing compound selected from the group consisting of a saturated acyclic monoketone, a saturated cyclic monoketone and, benzaldehyde, optionally substituted with lower alkyl having from 1 to about 6 carbon atoms, present in an amount from about 2 to about 25 times greater than the molar amount required to react with said diamine, in the absence of a phase transfer catalyst and a primary alcohol solvent, and in the presence of a base and sufficient haloform to provide said reaction product; maintaining the temperature of reaction in the range from above about the freezing point of the reaction mass up to about the reflux temperature of said reaction mass; and, recovering said polysubstituted 2-keto-1,4-diazacycloalkanone.
Claim 10
Dependent Claim 22 words
The method of claim 6 wherein said diamine is an N-piperidinyl substituted diamine and said reaction product is a piperidinyl substituted 1,4-diaza-2-cycloalkanone.
Claim 11
Dependent Claim 19 words
The method of claim 6 wherein said diamine is a N-substituted-N'-substituted-N-alkanediamine and said reaction product is a polysubstituted piperazinone.
Claim 12
Independent Claim 132 words
A method for preparing a polysubstituted alpha-aminoacetamide reaction product from an amino-piperidine comprising, contacting said amino-piperidine with a carbonyl-containing compound selected from the group consisting of a saturated acyclic monoketone, a saturated cyclic monoketone and, benzaldehyde, optionally substituted with lower alkyl having from 1 to about 6 carbon atoms, present in an amount from about 2 to about 25 times greater than the molar amount required to react with said amino-piperidine, in the absence of a phase transfer catalyst and a primary alcohol solvent, and in the presence of a base and sufficient haloform to provide said reaction product; maintaining the temperature of reaction in the range from above about the freezing point of the reaction mass up to about the reflux temperature of said reaction mass; and, recovering said polysubstituted alpha-aminoacetamide.
Claim 13
Independent Claim 132 words
A method for preparing a polysubstituted alpha-aminoacetamide reaction product from an amino-piperidine comprising, contacting said amino-piperidine with a carbonyl-containing compound selected from the group consisting of a saturated acyclic monoketone, a saturated cyclic monoketone and, benzaldehyde, optionally substituted with lower alkyl having from 1 to about 6 carbon atoms, present in an amount from about 2 to about 25 times greater than the molar amount required to react with said amino-piperidine, in the absence of a phase transfer catalyst and a primary alcohol solvent, and in the presence of a base and sufficient haloform to provide said reaction product; maintaining the temperature of reaction in the range from above about the freezing point of the reaction mass up to about the reflux temperature of said reaction mass; and, recovering said polysubstituted alpha-aminoacetamide.
Claim 14
Independent Claim 137 words
A method for preparing a polysubstituted alkali metal hydroxy-aminoacetate reaction product from an amino-alkanol reactant, comprising, contacting said amino-alkanol with a carbonyl-containing compound selected from the group consisting of a saturated acyclic monoketone, a saturated cyclic monoketone and, benzaldehyde, optionally substituted with lower alkyl having from 1 to about 6 carbon atoms, present in an amount from about 2 to about 25 times greater than the molar amount required to react with said amino-alkanol, in the absence of a phase transfer catalyst and a primary alcohol solvent, and in the presence of a base and sufficient haloform to provide said reaction product; maintaining the temperature of reaction in the range from above about the freezing point of the reaction mass up to about the reflux temperature of said reaction mass; and, recovering said polysubstituted alkali metal hydroxy-aminoacetate.
Claim 15
Independent Claim 137 words
A method for preparing a polysubstituted alkali metal hydroxy-aminoacetate reaction product from an amino-alkanol reactant, comprising, contacting said amino-alkanol with a carbonyl-containing compound selected from the group consisting of a saturated acyclic monoketone, a saturated cyclic monoketone and, benzaldehyde, optionally substituted with lower alkyl having from 1 to about 6 carbon atoms, present in an amount from about 2 to about 25 times greater than the molar amount required to react with said amino-alkanol, in the absence of a phase transfer catalyst and a primary alcohol solvent, and in the presence of a base and sufficient haloform to provide said reaction product; maintaining the temperature of reaction in the range from above about the freezing point of the reaction mass up to about the reflux temperature of said reaction mass; and, recovering said polysubstituted alkali metal hydroxy-aminoacetate.

References Cited (Backward Citations)

US4167512A Cited
US4310429A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1987-08-21 1988-02-20 1988-08-21 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1991-08-21 1992-02-20 1992-08-21 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1995-08-21 1996-02-20 1996-08-21 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag