1-Chloro-2,4-Dinitrobenzene → HCID 178484976, 화합물

HRID 426679노트

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HRID 426679 반응식
[N+:1]([C:4]1[CH:9]=[C:8]([N+:10]([O-:12])=[O:11])[CH:7]=[CH:6][C:5]=1Cl)([O-:3])=[O:2].[C:14]([NH:16][C:17]([NH:22][CH3:23])=[N:18][CH2:19][CH2:20][SH:21])#[N:15]>C(O)C>[C:14]([NH:16][C:17]([NH:22][CH3:23])=[N:18][CH2:19][CH2:20][S:21][C:5]1[CH:6]=[CH:7][C:8]([N+:10]([O-:12])=[O:11])=[CH:9][C:4]=1[N+:1]([O-:3])=[O:2])#[N:15]

참가 물질

4

반응물 2

HCID 61-Chloro-2,4-DinitrobenzeneHCID 178485018HCID 178485018, 화합물

생성물 1

HCID 178484976HCID 178484976, 화합물

시약·촉매·용매 1

HCID 702Ethanol용매2회

실험 절차

A solution of cysteamine hydrochloride (5.68 g) in water (20 ml) was added to a suspension of N-cyano-N,S-dimethylisothiourea (6.46 g) in ethanol (100 ml). A solution of sodium hydroxide (4.0 g) in water (20 ml) was added to the mixture and the suspension was heated under reflux for one hour. The resulting clear solution was concentrated to remove ethanol, a little more water was added and the alkaline aqueous solution was extracted with ethyl acetate. The aqueous solution was adjusted to pH4 with hydrochloric acid and extracted with ethyl acetate. This latter organic extract was dried and evaporated to give N-cyano-N'-methyl-N"-(2-mercaptoethyl)guanidine (6.12 g) as a colourless oil. In order to characterise this product a solution of 2,4-dinitrochlorobenzene (7.7 g) in 95% ethanol (50 ml) was added to a solution of N-cyano-N'-methyl-N"-(2-mercaptoethyl)guanidine (6.0 g) in 95% ethanol. The mixture was refluxed for one hour and cooled. The resulting crystalline solid (7.73 g) was collected and was triturated with a large volume of ether and was recrystallised from acetonitrile to afford N-cyano-N'-methyl-N"-[S-(2,4-dinitrophenyl)-2-mercaptoethyl]guanidine, m.p. 210°-211° C.

후처리

  1. temperatureThe mixture was refluxed for one hour
  2. temperaturecooled
  3. customThe resulting crystalline solid (7.73 g) was collected
  4. customwas triturated with a large volume of ether
  5. customwas recrystallised from acetonitrile

출처 및 근거

ORD 기록
ord-746236050c654b1199a5f59015708c70
출처 데이터셋
uspto-grants-1979_10
특허 번호
US04171325

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