1,3-Dimercapto-2-propanol → HCID 86587450, compound

HRID 1836920Notes

Reaction equation

HRID 1836920 reaction equation
[SH:1][CH2:2][CH:3](O)[CH2:4][SH:5].F[C:8]([O:20]CC)(F)[C:9](F)(F)C(F)(F)C(F)(F)F.CN(C)C=O.C([O-])(=O)CCCCCCCCCCC.C([O-])(=O)CCCCCCCCCCC.C([Sn+2]CCCC)CCC.[N-:65]=[C:66]=[O:67]>>[S:5]1[CH:4]=[CH:3][CH2:2][S:1]1.[NH2:65][C:66]([O:20][CH2:8][CH3:9])=[O:67]

Participants

5

Reactant 4

HCID 685051,3-Dimercapto-2-propanolHCID 105034IsocyanateHCID 9809426Di-n-butyldilauryltinHCID 86587451HCID 86587451, compound

Product 1

HCID 86587450HCID 86587450, compound

Procedure

The perfluoropolyether bis(isocyanate) described above was heated with 2.2 equivalents of 1,3-dimercapto-2-propanol in 1:1 ethyl perfluorobutyl ether/dimethylformamide with catalytic dibutyltin dilaurate at reflux for four hours. The reaction was followed by monitoring the disappearance of the isocyanate stretching band and the growth of the carbonyl band by FTIR. Upon completion of the reaction mixture was washed well with water. Concentration by evaporation yielded the perfluoropolyether bis(urethane dithiol), which has the putative formula:

Workup

  1. temperatureat reflux for four hours
  2. washUpon completion of the reaction mixture was washed well with water
  3. concentrationConcentration
  4. customby evaporation

Sources & evidence

ORD record
ord-ef2413ee7d1945feb36253ec2e3dfb7d
Source dataset
uspto-grants-2004_08
Patent number
US06778753B2

Reaction notes

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