N-vinyl-2-pyrrolidone → HCID 86734509, compound

HRID 436620Notes

Reaction equation

HRID 436620 reaction equation
[CH:1]([N:3]1[CH2:7][CH2:6][CH2:5][C:4]1=[O:8])=[CH2:2].[CH:9]([CH:11]=[CH2:12])=[O:10]>O>[CH:1]([N:3]1[CH2:7][CH2:6][CH2:5][C:4]1=[O:8])=[CH2:2].[CH:9]([CH:11]=[CH2:12])=[O:10]

Participants

4

Reactant 2

HCID 6917N-vinyl-2-pyrrolidoneHCID 7847Acrolein

Product 1

HCID 86734509HCID 86734509, compound

Reagents, catalysts & solvents 1

HCID 962WaterSolvent

Procedure

A 3-neck, round bottom flask equipped with a mechanical stirrer, means for maintaining an inert atmosphere in the flask and a thermometer is charged with 368 ml. of distilled water, 22.2 g. (0.2 mol) N-vinyl pyrrolidone and 1.3 g. (0.02 mol) of acrolein. The flask is flushed with nitrogen, and the contents of the flask are maintained under nitrogen during the course of the reaction. The mixture is stirred, the temperature is raised to 50°-55° C. and maintained at this temperature, and 0.2 g. of 4,4'-azobiscyanopentanoic acid is added. After 2 hours reaction an additional 0.2 g. of 4,4'-azobiscyanopentanoic acid is added, and the reaction is allowed to continue for an additional 3 hours. At the end of this time, the mixture is filtered to remove a small amount of insoluble material. The filtrate obtained contains about 6 percent by weight of copolymer. The solution may be used as such or isolated by spray or drum drying.

Workup

  1. customA 3-neck, round bottom flask equipped with a mechanical stirrer
  2. temperaturefor maintaining an inert atmosphere in the flask
  3. additiona thermometer is charged with 368 ml
  4. customThe flask is flushed with nitrogen
  5. temperaturethe contents of the flask are maintained under nitrogen during the course of the reaction
  6. temperaturethe temperature is raised to 50°-55° C.
  7. temperaturemaintained at this temperature, and 0.2 g
  8. additionof 4,4'-azobiscyanopentanoic acid is added
  9. customAfter 2 hours reaction an additional 0.2 g
  10. filtrationAt the end of this time, the mixture is filtered
  11. customto remove a small amount of insoluble material
  12. customThe filtrate obtained
  13. customisolated by spray or drum
  14. customdrying

Sources & evidence

ORD record
ord-a5d0e819e6314ff9bd9652dfddb52006
Source dataset
uspto-grants-1977_02
Patent number
US04009313

Reaction notes

Loading…