Benzaldehyde → Diethyl 2-(benzylideneamino)2-methylnonanedioate

HRID 444052노트

반응식

HRID 444052 반응식
[NH2:1][CH:2]([CH2:8][CH2:9][CH2:10][CH2:11][CH2:12][CH2:13][C:14]([O:16][CH2:17][CH3:18])=[O:15])[C:3]([O:5][CH2:6][CH3:7])=[O:4].[CH:19](=O)[C:20]1[CH:25]=[CH:24][CH:23]=[CH:22][CH:21]=1.[CH3:27]I>C1C=CC=CC=1>[CH:19](=[N:1][C:2]([CH3:27])([CH2:8][CH2:9][CH2:10][CH2:11][CH2:12][CH2:13][C:14]([O:16][CH2:17][CH3:18])=[O:15])[C:3]([O:5][CH2:6][CH3:7])=[O:4])[C:20]1[CH:25]=[CH:24][CH:23]=[CH:22][CH:21]=1

참가 물질

5

반응물 3

HCID 240BenzaldehydeHCID 6328Methyl iodideHCID 6455180Diethyl 2-aminononane-1,9-dioate

생성물 1

HCID 12783288Diethyl 2-(benzylideneamino)2-methylnonanedioate수율 91.8%

시약·촉매·용매 1

HCID 241Benzene용매

실험 절차

Diethyl 2-aminononanedioate (5.0 g) was heated with benzaldehyde (2.15 g) in benzene (10 ml) under reflux for 12/3 hours, removing the water formed by means of a Dean and Stark apparatus. The benzene was evaporated in vacuo and the residual oil was taken up in dry tetrahydrofuran (20 ml), stirred under dry nitrogen, treated with sodium hydride (0.61 g of a 80% dispersion in mineral oil), and heated until evolution of hydrogen began. Thereafter, reaction was allowed to proceed at room temperature. When effervescence had ceased, the pale yellow-brown solution was cooled in ice-water and, with continued stirring, treated with methyl iodide (6.83 g); the cooling bath was removed after 15 minutes and the mixture was set aside at room temperature overnight. The resulting suspension of solid was diluted with ether (100 ml) and shaken with ice-cold water (100 ml), and the ethereal phase was washed with H2O, dried over sodium sulphate, and evaporated, to leave crude diethyl 2-(benzylideneamino)2-methylnonanedioate (6.4 g) as a yellow oil.

후처리

  1. temperatureunder reflux for 12/3 hours
  2. customremoving the water
  3. customformed by means of a Dean and Stark apparatus
  4. customThe benzene was evaporated in vacuo
  5. additiontreated with sodium hydride (0.61 g of a 80% dispersion in mineral oil), and
  6. temperatureheated until evolution of hydrogen
  7. customThereafter, reaction
  8. customto proceed at room temperature
  9. customthe cooling bath was removed after 15 minutes
  10. additionThe resulting suspension of solid
  11. additionwas diluted with ether (100 ml)
  12. stirringshaken with ice-cold water (100 ml)
  13. washthe ethereal phase was washed with H2O
  14. dry with materialdried over sodium sulphate
  15. customevaporated

출처 및 근거

ORD 기록
ord-ae4d5833fcd44617b08508306ad8e828
출처 데이터셋
uspto-grants-1981_04
특허 번호
US04262128

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