Tert-butyl N-[(4-cyanophenyl)methyl]-N-[(2-methylpropan-2-yl)oxycarbonyl]carbamate → 4-(Aminomethyl)benzonitrile

HRID 459728

반응식

HRID 459728 반응식
C(OC([N:8]([CH2:16][C:17]1[CH:24]=[CH:23][C:20]([C:21]#[N:22])=[CH:19][CH:18]=1)C(OC(C)(C)C)=O)=O)(C)(C)C>C(O)(C(F)(F)F)=O.ClCCl>[NH2:22][CH2:21][C:20]1[CH:23]=[CH:24][C:17]([C:16]#[N:8])=[CH:18][CH:19]=1

참가 물질

4

반응물 1

HCID 3683768Tert-butyl N-[(4-cyanophenyl)methyl]-N-[(2-methylpropan-2-yl)oxycarbonyl]carbamate

생성물 1

HCID 826084-(Aminomethyl)benzonitrile수율 68%

시약·촉매·용매 2

HCID 6344Dichloromethane용매HCID 6422Trifluoroacetic acid용매

반응 조건

온도
25 °C

실험 절차

4-(Di-tert-butoxycarbonylaminomethyl)benzonitrile (2 g, 6.0 mmoles) (prepared as described in Preparative Example 247, Step A above) was dissolved in TFA (4 mL) and the solution was stirred at 25° C. for 0.25 h. The reaction mixture was diluted with dichloromethane and extracted with 1N sodium hydroxide. The organic layer was dried (MgSO4), filtered and evaporated to dryness. The residue was chromatographed on a silica gel column (15×5 cm) using 3% (10% conc. ammonium hydroxide in methanol)-dichloromethane as the eluant to give 4-(aminomethyl)benzonitrile (108 mg, 68%): FABMS: m/z 133.1 (MH+); HRFABMS: m/z 133.0764 (MH+). Calcd. for C8H9N2: m/z 133.0766; δH (CDCl3) 2.04 (2H, s, —CH2NH2), 3.89 (2H, s, —CH2NH2), 7.40 (2H, d, Ar—H) and 7.59 ppm (2H, d, Ar—H); δC (CDCl3)CH2: 45.7; CH: 127.8, 127.8, 132.4, 132.4; C: 110.6, 118.9, 148.0.

후처리

  1. extractionextracted with 1N sodium hydroxide
  2. dry with materialThe organic layer was dried (MgSO4)
  3. filtrationfiltered
  4. customevaporated to dryness
  5. customThe residue was chromatographed on a silica gel column (15×5 cm)

출처 및 근거

ORD 기록
ord-f593e037c460410a877e4f4ad2e2c590
출처 데이터셋
uspto-grants-2007_03
특허 번호
US07196078B2

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