(+/-)-B-BUTYROLACTONE → 3-Hydroxybutyrate

HRID 1084300

反应方程式

HRID 1084300 反应方程式
C1(=O)OC(C)C1.C1(=O)OC(CC)C1.[OH:14][CH:15]([CH2:20][CH3:21])[CH2:16][C:17]([O-:19])=[O:18]>>[OH:14][CH:15]([CH3:20])[CH2:16][C:17]([O-:19])=[O:18].[OH:14][CH:15]([CH2:20][CH3:21])[CH2:16][C:17]([O-:19])=[O:18]

参与物

5

反应物 3

HCID 18303(+/-)-B-BUTYROLACTONE2 次HCID 10909499Racemic beta-valerolactoneHCID 218690603-Hydroxyvalerate

产物 2

HCID 35411123-HydroxybutyrateHCID 218690603-Hydroxyvalerate

实验过程

Copolymers of beta-hydroxybutyrate and beta-hydroxyvalerate containing 30 mole percent beta-hydroxyvalerate were prepared by repeating the process of Example II with the exception that the dry racemic beta-butyrolactone employed was replaced by a mixture containing 30 mole percent of dry racemic beta-valerolactone with 70 mole percent racemic beta-butyrolactone. The resulting copolymer was a mixture of stereoregular and stereoirregular copolymers containing 30 mole percent beta-hydroxyvalerate as shown by NMR. The number average molecular weight of this copolymer was 20,000 as determined by GPC and the melting point was 120° C.

后处理

  1. additiona mixture of stereoregular and stereoirregular copolymers

来源与证据

ORD记录
ord-47c9fd09615d43f0a706b85d35db01b2
来源数据集
uspto-grants-1991_04
专利号
US05004664

关联笔记

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