Process for the preparation of polyalkylphenoxyaminoalkanes
AssigneeChevron Oronite Company LLC
InventorJames A. Gray
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Abstract
A process for the preparation of polyalkylphenoxyaminoalkanes which comprises the aminoethylation of a polyalkylphenol compound in the presence of a basic catalyst with β-amino alcohol or derivative thereof having the following structure: R1NH—CHR2—CH2—OH and a dialkyl carbonate having the following formula: (R3O)2CO wherein R1 and R2 are independently hydrogen or lower alkyl having 1 to about 6 carbon atoms, hydroxylalkylene, phenyl, alkaryl, or aralkyl, R3 is lower alkyl having 1 to about 6 carbon atoms, and wherein the polyalkyl group of said polyalkylphenol has an average molecular weight in the range of about 600 to 5,000. Optionally, an alcohol co-solvent having the structure R4—OH wherein R4 is an alkyl group of about 4 to 10 carbon atoms may be used.
Claims32
A process for the preparation of a polyalkylphenoxyaminoalkane which comprises the aminoethylation of a polyalkylphenol compound in the presence of a basic catalyst with β-amino alcohol or a derivative thereof having the following formula:
- R1NH—CHR2—CH2—OH
- wherein R1, and R2 are independently hydrogen or lower alkyl having 1 to about 6 carbon atoms, hydroxylalkylene, phenyl, alkaryl, or aralkyl,
- and a dialkyl carbonate having the following formula
- (R3O)2CO
- wherein R3 is lower alkyl having 1 to about 6 carbon atoms;
- and wherein the polyalkyl group of said polyalkylphenol has an average molecular weight in the range of about 600 to 5,000.
Dependencies are inferred from the claim text.