甲基丙烯酸甲酯 → 甲基丙烯酸月桂酯

HRID 4895

反应方程式

HRID 4895 反应方程式
[C:1]([O:6][CH3:7])(=[O:5])[C:2]([CH3:4])=[CH2:3].[CH2:8](O)[CH2:9][CH2:10][CH2:11][CH2:12][CH2:13][CH2:14][CH2:15][CH2:16][CH2:17][CH2:18]C.C1C2NC3C(=CC=CC=3)SC=2C=CC=1>>[C:1]([O:6][CH2:7][CH2:18][CH2:17][CH2:16][CH2:15][CH2:14][CH2:13][CH2:12][CH2:11][CH2:10][CH2:9][CH3:8])(=[O:5])[C:2]([CH3:4])=[CH2:3]

参与物

4

反应物 3

HCID 6658甲基丙烯酸甲酯HCID 7108吩噻嗪HCID 8193Alcohol C-12

产物 1

HCID 8906甲基丙烯酸月桂酯

实验过程

Two hundred six grams of a reaction mix containing a 5:1 mole ratio of methyl methacrylate, 1-dodecanol, and 100 ppm phenothiazine as inhibitor were added to a 500 ml flask equipped with an agitatior, thermocouple, and a 10-tray Oldershaw fractional distillation column. Thirty grams of the heterogeneous zirconium vinylbenzyl acetylacetonate/styrene/divinylbenzene catalyst was added. The mixture was heated to reflux at atmospheric pressure while an azeotropic mixture of methyl methacrylate and methanol was removed from the upper portion of the fractionating column. The reaction was continued in this manner for 6 hours while the temperature at the column was 64°-67° C. and the temperature in the pot was 101°-107° C. Gas liquid chromatography (GLC) analysis showed 30% conversion of 1-dodecanol with a selectivity to dodecyl methacrylate of 95%.

后处理

  1. additioncontaining a 5
  2. customequipped with an agitatior
  3. distillationthermocouple, and a 10-tray Oldershaw fractional distillation column
  4. additionThirty grams of the heterogeneous zirconium vinylbenzyl acetylacetonate/styrene/divinylbenzene catalyst was added
  5. temperatureThe mixture was heated
  6. temperatureto reflux at atmospheric pressure while an azeotropic mixture of methyl methacrylate and methanol
  7. customwas removed from the upper portion of the fractionating column
  8. customwas 64°-67° C.
  9. custompot was 101°-107° C

来源与证据

ORD记录
ord-bff539d21f0449efa90cb66fd5b38883
来源数据集
uspto-grants-1993_09
专利号
US05242877

关联笔记

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