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US 2008/0177050 A1Published application
Alpha, omega-difunctional aldaramides
AssigneeE. I. Du Pont de Nemours and Company
InventorsMark Allen Andrews, Henry Keith Chenault, Garret D. Figuly
Life of this patent
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Abstract
Alpha, omega-difunctional aldaramides, in particular diaminoaldaramides, dihydroxyaldaramides, bis(alkoxycarbonylalkyl)aldaramides, and bis(carboxyalkyl)aldaramides, and processes for preparing the aldaramides are provided.
Claims21
A compound of Formula V,
- or salts thereof, wherein n=1-6;
- R4 and R5 are independently optionally substituted hydrocarbylene groups, wherein the hydrocarbylene groups are aliphatic or aromatic, linear, branched, or cyclic, and wherein the hydrocarbylene groups optionally contain —O— linkages;
- and R3 and R6 are independently selected from hydrogen, optionally substituted aryl and optionally substituted alkyl.
A process for preparing a compound of Formula VII
- or salt thereof, comprising contacting at least one diomine of the formula NH2-R7-NH2 with a compound of Formula VIII, IX, or X
- wherein R7 is an optionally substituted hydrocarbylene group, wherein the hydrocarbylene group is aliphatic or aromatic, linear, branched, or cyclic, the hydrocarbylene group optionally contains —O— linkages, R′ and R″ are independently selected from 1 to 6 carbon alkyl groups, n=1-6, m=0-4, and p=1-4.
A process for preparing a compound of Formula XIX
- or a salt thereof, comprising contacting at least one amino acid or amino acid ester of the formula (R8OOC)—R9-NH2 with a compound of Formula VIII, IX, or X
- wherein n=1-6;
- R9 is an optionally substituted hydrocarbylene group, wherein the hydrocarbylene group is aliphatic or aromatic, linear, branched, or cyclic, and wherein the hydrocarbylene group optionally contains —O— linkages, R8 is hydrogen, optionally substituted aryl or optionally substituted alkyl, R′ and R″ are independently a 1 to 6 carbon alkyl group, n=1-6, m=0-4, and p=1-4.
A process for preparing a compound of Formula XXII
- or salt thereof, comprising contacting at least one aminoalcohol of Formula HO—R10-NH2 with a compound of Formula VIII or X
- wherein R10 is an optionally substituted hydrocarbylene group, wherein the hydrocarbylene group is aliphatic or aromatic, linear, branched, or cyclic, and wherein the hydrocarbylene group optionally contains —O— linkages, R′ is a 1 to 6 carbon alkyl group, m=0-4, and p=1-4.
Dependencies are inferred from the claim text.