Acrylic Acid → Prop-2-enoic acid--2-(dimethylamino)ethyl 2-methylprop-2-enoate (1/1)

HRID 2059557Notes

Reaction equation

[C:1]([O:6][CH2:7][CH2:8][N:9]([CH3:11])[CH3:10])(=[O:5])[C:2]([CH3:4])=[CH2:3].[C:12]([OH:16])(=[O:15])[CH:13]=[CH2:14]>O>[C:1]([O:6][CH2:7][CH2:8][N:9]([CH3:11])[CH3:10])(=[O:5])[C:2]([CH3:4])=[CH2:3].[C:12]([OH:16])(=[O:15])[CH:13]=[CH2:14]

Participants

Conditions

Temperature: 71 °C

Procedure

A relative permeability modifier useful in the present invention was prepared as follows. First, a polymer was made by mixing 45.0 g of dimethylaminoethyl methacrylate, 6.8 g acrylic acid, 372.0 g of water and sparging with nitrogen for 30 minutes. Thereafter, the pH was adjusted to approximately 5.3 with 5.7 mL of concentrated sulfuric acid, followed by the addition of 0.2 mL of 2-mercaptoethanol and 1.3 g of 2,2′-azo bis(2-amidinopropane)dihydrochloride. The resulting solution was then heated to 71° C., with stirring, and held for 18 hours to produce poly(dimethylaminoethyl methacrylate/acrylic acid).

Workup

customA relative permeability modifier useful in the present invention was prepared
customsparging with nitrogen for 30 minutes
additionfollowed by the addition of 0.2 mL of 2-mercaptoethanol and 1.3 g of 2,2′-azo bis(2-amidinopropane)dihydrochloride

Sources & evidence

ORD record: ord-7015cf9b3913433e80581de2abcb85d2
Source dataset: uspto-grants-2012_10
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08278250B2

Reaction notes

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