Lithium Bromide → 1-Bromoethyl ethyl carbonate

HRID 364871

반응식

HRID 364871 반응식
[Br-:1].[Li+].[C:3](=[O:11])([O:7][CH:8](Cl)[CH3:9])[O:4][CH2:5][CH3:6]>CN(C)C=O>[C:3](=[O:11])([O:7][CH:8]([Br:1])[CH3:9])[O:4][CH2:5][CH3:6]

참가 물질

4

반응물 2

HCID 82050Lithium BromideHCID 162095Carbonic acid, 1-chloroethyl ethyl ester

생성물 1

HCID 30215501-Bromoethyl ethyl carbonate수율 76%

시약·촉매·용매 1

HCID 6228Dimethylformamide용매

실험 절차

Lithium bromide (17.4 g, 0.2 m) was dissolved in dimethy formamide (150 ml) and the mixture cooled to ambient temperature. Ethyl alpha-chloroethyl carbonate (30.5 g, 0.2 m) was added and the mixture stirred at ambient temperature for 24 hours. The precipitated lithium chloride was filtered off and the filtrate vacuum distilled to afford after careful re-fractionation, ethyl alpha-bromoethyl carbonate in 76% yield based upon recovered ethyl alphachloroethyl carbonate.

후처리

  1. filtrationThe precipitated lithium chloride was filtered off
  2. distillationthe filtrate vacuum distilled

출처 및 근거

ORD 기록
ord-a65c4f3ac0374345a233254735b622a4
출처 데이터셋
uspto-grants-1986_08
특허 번호
US04606865

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