2-Octyldodecanol → Diethylene Glycol Monobutyl Ether

HRID 1741214Notes

Reaction equation

HRID 1741214 reaction equation
CC1C=CN(C(NCCCCNC(N2N=C(C)C=C2)=O)=O)N=1.CCCCCCCCCCC(CO)CCCCCCCC.[CH3:44][CH2:45][CH2:46][CH2:47][O:48][CH2:49][CH2:50][O:51][CH2:52][CH2:53][OH:54].O>C([O-])(=O)CCCCCCCCCCC.C([O-])(=O)CCCCCCCCCCC.C([Sn+2]CCCC)CCC>[CH3:44][CH2:45][CH2:46][CH2:47][O:48][CH2:49][CH2:50][O:51][CH2:52][CH2:53][OH:54]

Participants

5

Reactant 3

HCID 214142-OctyldodecanolHCID 30731921H-Pyrazole-1-carboxamide, N,N'-1,4-butanediylbis(3(or 5)-methyl-HCID 87481768HCID 87481768, compound

Product 1

HCID 8177Diethylene Glycol Monobutyl Ether

Reagents, catalysts & solvents 1

HCID 9809426Di-n-butyldilauryltinCatalyst

Procedure

A blend of 3350 and 8000 molecular weight poly(ethylene glycols)--3500 and 8000 molecular weights--was made up to give an average molecular weight of 3440 g/mol. 1300 g of this blend was placed in a 1 gallon Sigma mixer and dewatered under vacuum for 3 hours. The vacuum is released, the temperature brought to 75° C., and the reactor contents placed under a nitrogen blanket. 105.97 g of VESTANAT TMDI (Huls America Inc.) was added to the reactor and allowed to mix for 2 minutes 2.30 g dibutyltin dilaurate catalyst is added and the reaction allowed to take place for 30 minutes. A branched alcohol, 75.08g Isofol 20 (CONDEA Vista Co., total carbon content of 20, i.e. C20) used as a cap was added and allowed to react for 30 minutes. The molten polymer was then discharged to a butyl Carbitol/water solution to give a final product of 25% polymer/18.5% butyl Carbitol/56.5% water. The polyurethane obtained was designated Compound 1.

Workup

  1. customto give an average molecular weight of 3440 g/mol
  2. custombrought to 75° C.
  3. additionis added
  4. customfor 30 minutes
  5. additionwas added
  6. customto react for 30 minutes

Sources & evidence

ORD record
ord-f4000771e050417788ba8b257be8d132
Source dataset
uspto-grants-1999_10
Patent number
US05973063

Reaction notes

Loading…