Nitrogen → HCID 86742155, compound
Reaction equation
[C:1](OC=C)(=[O:3])[CH3:2].[CH:7]([O:9][CH2:10][CH2:11][CH2:12][CH3:13])=[CH2:8].N#N.[OH-].[Na+]>CO.O>[CH:1]([OH:3])=[CH2:2].[CH:7]([O:9][CH2:10][CH2:11][CH2:12][CH3:13])=[CH2:8]Participants
Reactant 4
Product 1
Reagents, catalysts & solvents 2
Procedure
172.2 g (2.00 moles) of vinyl acetate, 15.1 g (0.15 mole) of n-butyl vinyl ether, 56.2 g of methanol and 0.28 g of 2,2'-azobis-2,4-dimethylvaleronitrile were mixed and polymerized in an atmosphere of N2 at 62° C. for 8 hours. Subsequently, 749.2 g of 5% water-containing methanol and 8.0 g (0.20 mole) of caustic soda were added to the reaction product for saponification at 45° C. for 2 hours. The reaction mixture was milled and filtered to obtain a polymer portion, followed by washing with 5% water-containing alcohol to eliminate impurities such as sodium acetate therefrom. The purified polymer was dried under reduced pressure and milled to obtain 82.5 g of a white powdery vinyl alcohol/n-butyl vinyl ether (93/7 by molar ratio) copolymer (hereinafter referred to as PVA/n-BVE).
Workup
- additionwere added to the reaction product for saponification at 45° C. for 2 hours
- customThe reaction mixture was milled
- filtrationfiltered
- customto obtain a polymer portion
- washby washing with 5% water-
- additioncontaining alcohol
- customThe purified polymer was dried under reduced pressure
- custommilled
Sources & evidence
- ORD record
- ord-c85e05ed7fc643568293170c76f5793c
- Source dataset
- uspto-grants-1988_05
- Patent number
- US04743441
Reaction notes
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