Sulfuric Acid → Prop-2-yn-1-yl cyanoacetate

HRID 1198094노트

반응식

HRID 1198094 반응식
[CH2:1](O)[C:2]#[CH:3].[C:5]([CH2:7][C:8]([OH:10])=[O:9])#[N:6].S(=O)(=O)(O)O>C(Cl)(Cl)Cl>[C:5]([CH2:7][C:8]([O:10][CH2:3][C:2]#[CH:1])=[O:9])#[N:6]

참가 물질

5

반응물 3

HCID 1118Sulfuric AcidHCID 7859Propargyl alcoholHCID 9740Cyanoacetic acid

생성물 1

HCID 14972819Prop-2-yn-1-yl cyanoacetate수율 71%

시약·촉매·용매 1

HCID 6212Chloroform용매

실험 절차

1.6 parts of propargyl alcohol and 1 part of cyanoacetic acid were dissolved in 4.7 parts of chloroform. 0.2 parts of a 98 percent by weight solution of aqueous sulfuric acid were added as a catalyst and the resultant mixture was heated for 5.5 hours at a temperature of 61° C. The crude ester was washed with water. Volatile materials were removed using reduced pressure. The ester, represented the formula N≡CCH2C(O)OCH2C≡CH, was isolated in 71 percent yield.

후처리

  1. washThe crude ester was washed with water
  2. customVolatile materials were removed
  3. customwas isolated in 71 percent yield

출처 및 근거

ORD 기록
ord-4962d1a539b048ee8e4526ed4125fc26
출처 데이터셋
uspto-grants-1994_01
특허 번호
US05279898

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