Dimethyl isophthalate → 3,6-Dioxabicyclo(6.3.1)dodeca-1(12),8,10-triene-2,7-dione

HRID 1076943노트

반응식

HRID 1076943 반응식
[C:1]([O:13][CH3:14])(=[O:12])[C:2]1[CH:11]=[CH:10][CH:9]=[C:4]([C:5]([O:7][CH3:8])=[O:6])[CH:3]=1.[Sb]#[Sb].OCCOC(=O)CCCCC(OCCO)=O>C([O-])(=O)C.[Mn+2].C([O-])(=O)C.C(O)CO>[C:5]1(=[O:6])[O:7][CH2:8][CH2:14][O:13][C:1](=[O:12])[C:2]2=[CH:11][CH:10]=[CH:9][C:4]1=[CH:3]2

참가 물질

6

반응물 3

HCID 15088Dimethyl isophthalateHCID 23967Antimony, mol. (Sb2)HCID 74340Bis(2-hydroxyethyl) adipate

생성물 1

HCID 817903,6-Dioxabicyclo(6.3.1)dodeca-1(12),8,10-triene-2,7-dione

시약·촉매·용매 2

HCID 12525Manganous Acetate촉매HCID 174Ethylene Glycol용매

실험 절차

Dimethyl isophthalate, 1.37 kg, and ethylene glycol, 0.92 kg, were charged into a reactor together with an ester exchange catalyst which was a mixture of 2.05 g manganese acetate and 1.35 g diantimony trixoide. The ester exchange reaction was carried out as described in Example 1, and 3.29 kg of bis(hydroxyethyl)adipate was added to the product thus obtained. The polymerization was carried out at 265°C. at 1 mm Hg pressure for 6 hours to provide a poly(ethylene isophthalate/adiphate) having a mol ratio of isophthalate to adipate of 33 to 67 and having an intrinsic viscosity of 0.56, as determined in a solvent mixture of 25 volume percent trifluoroacetic acid and 75 volume percent methylene chloride.

후처리

  1. additionwas added to the product
  2. customthus obtained

출처 및 근거

ORD 기록
ord-5121e02df81a4298aa201f3d53995026
출처 데이터셋
uspto-grants-1976_05
특허 번호
US03959200

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