Carbamic acid, ethyl ester → Ethyl N-tert-butylcarbamate

HRID 1632599노트

반응식

HRID 1632599 반응식
[C:1](=[O:6])([O:3][CH2:4][CH3:5])[NH2:2].[CH2:7]=[C:8]([CH3:10])[CH3:9]>C(O)C>[C:8]([NH:2][C:1](=[O:6])[O:3][CH2:4][CH3:5])([CH3:10])([CH3:9])[CH3:7]

참가 물질

4

반응물 2

HCID 5641Carbamic acid, ethyl esterHCID 8255Isobutylene

생성물 1

HCID 4189386Ethyl N-tert-butylcarbamate수율 93.8%

시약·촉매·용매 1

HCID 702Ethanol용매

반응 조건

온도
70 °C

실험 절차

A stirred mixture of 89 g of ethyl carbamate, 5 g of ethanol, 10 g of ®LEWASORB AC-10 and 70 g of isobutene was heated to 70° C. in a stirred autoclave, and stirring was continued at this temperature for 4 hours. After the reaction was complete, the catalyst was separated off and the mixture was worked up by distillation. 136 g (93% of theory) of ethyl N-tert.-butylcarbamate of boiling point 70°-71° C./20 mbar were obtained. Gas chromatography showed that the crude product contained 0.2 percent by weight of diisobutene, but not diethyl carbonate was detected.

후처리

  1. customthe catalyst was separated off
  2. distillationthe mixture was worked up by distillation

출처 및 근거

ORD 기록
ord-29e69c9f6b674a1aa57aa531a5aed22a
출처 데이터셋
uspto-grants-1984_10
특허 번호
US04476316

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