Azobisisobutyronitrile → HCID 173649, compound

HRID 1703742Notes

Reaction equation

HRID 1703742 reaction equation
[C:1]1(=[O:7])[O:6][C:4](=[O:5])[CH:3]=[CH:2]1.C(C(C)=O)C.[CH3:13][CH2:14][CH2:15][CH2:16][CH:17]=[CH2:18].N(C(C)(C)C#N)=NC(C)(C)C#N>CO>[CH3:18][CH2:17][CH2:16][CH2:15][CH:14]=[CH2:13].[C:4]1(=[O:5])[O:6][C:1](=[O:7])[CH:2]=[CH:3]1

Participants

6

Reactant 4

HCID 6547AzobisisobutyronitrileHCID 6569Methyl Ethyl KetoneHCID 7923Maleic AnhydrideHCID 115971-Hexene

Product 1

HCID 173649HCID 173649, compound

Reagents, catalysts & solvents 1

HCID 887MethanolSolvent

Procedure

A separable flask fitted with a reflux condenser was charged with 98 parts of maleic anhydride, 300 parts of methyl ethyl ketone, 84 parts of hexene-1 and 4 parts of azobisisobutyronitrile, and the mixture was reacted with stirring in an atmosphere of nitrogen at 65°-70° C. After carrying out the reaction for 10 hours, the system was cooled to room temperature and cold methanol was added to precipitate a polymer, which was separated, collected and dried under reduced pressure to obtain 108 parts of a hexene-1-maleic anhydride copolymer (mol ratio 1:1, MW = 3800). A mixture of 91 parts of the so obtained copolymer and 400 parts of a 10% aqueous sodium hydroxide solution was stirred at 80°-90° C. to obtain an aqueous solution of a water-soluble hexene-1-sodium maleate copolymer (hereinafter referred to as water-soluble salt (II-2) or Na salt of (C6 -MA) copolymer).

Workup

  1. customA separable flask fitted with a reflux condenser
  2. customthe mixture was reacted
  3. customthe reaction for 10 hours
  4. customto precipitate a polymer, which
  5. customwas separated
  6. customcollected
  7. customdried under reduced pressure

Sources & evidence

ORD record
ord-4cbc0b6dd5984b13bb62b12e808baf50
Source dataset
uspto-grants-1978_11
Patent number
US04125410

Reaction notes

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