2-ethylhexanoic acid tin(II) salt → HCID 131718519, compound

HRID 1109935Notes

Reaction equation

HRID 1109935 reaction equation
[C:1]1(=[O:8])[O:7]CCCC[CH2:2]1.CCCC[CH:13]([C:16]([O-:18])=[O:17])CC.[CH3:19][CH2:20][CH2:21][CH2:22][CH:23]([C:26]([O-:28])=[O:27])CC.[Sn+2]>C(O)COCCO>[CH2:2]1[O:18][C:16](=[O:17])[CH2:13][O:8][C:1]1=[O:7].[C:26]1(=[O:28])[O:27][CH:22]([CH2:21][CH2:20][CH3:19])[CH2:23]1

Participants

4

Reactant 2

HCID 93182-ethylhexanoic acid tin(II) saltHCID 10401epsilon-CAPROLACTONE

Product 1

HCID 131718519HCID 131718519, compound

Reagents, catalysts & solvents 1

HCID 8117Diethylene GlycolSolvent

Conditions

Temperature
200 °C

Procedure

ε-caprolactone (Cap), diethylene glycol (DEG), and stannous octoate were combined and melted under a nitrogen atmosphere. The mixture was charged into a nitrogen purged stirred reactor at 200° C. The contents were stirred at this temperature until maximum melt viscosity was achieved. Glycolide was melted under nitrogen and charged into the reactor. The temperature was increased to 225° C. over a 15 minute period, and the contents maintained at 225° C. until maximum melt viscosity was obtained. The polymer was discharged from the reactor, ground and dried in a vacuum oven for 12-18 hours at 100° C. and 0.2 mm Hg. Specific examples of polymers prepared by this procedure are summarized in Table 7.

Workup

  1. additionThe mixture was charged into a nitrogen
  2. custompurged
  3. stirringThe contents were stirred at this temperature until maximum melt viscosity
  4. additioncharged into the reactor
  5. temperatureThe temperature was increased to 225° C. over a 15 minute period
  6. temperaturethe contents maintained at 225° C. until maximum melt viscosity
  7. customwas obtained
  8. customdried in a vacuum oven for 12-18 hours at 100° C.

Sources & evidence

ORD record
ord-f4798572808f46dca3270b30e04c4571
Source dataset
uspto-grants-1994_06
Patent number
US05324307

Reaction notes

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