(3aR*,10aS*)-9-(4-Nitrobenzyl)-2,3,3a,4,9,10a-hexahydrobenzo[b]cyclopenta[e][1,4]diazepin-10(1H)-one → (3aR*,10aS*)-9-(4-Aminobenzyl)-2,3,3a,4,9,10a-hexahydrobenzo[b]cyclopenta[e][1,4]diazepin-10(1H)-one

HRID 356185Notes

Reaction equation

HRID 356185 reaction equation
[N+:1]([C:4]1[CH:25]=[CH:24][C:7]([CH2:8][N:9]2[C:15](=[O:16])[C@H:14]3[CH2:17][CH2:18][CH2:19][C@H:13]3[NH:12][C:11]3[CH:20]=[CH:21][CH:22]=[CH:23][C:10]2=3)=[CH:6][CH:5]=1)([O-])=O>O1CCCC1.CO.[C].[Pd]>[NH2:1][C:4]1[CH:25]=[CH:24][C:7]([CH2:8][N:9]2[C:15](=[O:16])[C@H:14]3[CH2:17][CH2:18][CH2:19][C@H:13]3[NH:12][C:11]3[CH:20]=[CH:21][CH:22]=[CH:23][C:10]2=3)=[CH:6][CH:5]=1

Participants

5

Reactant 1

HCID 54563031(3aR*,10aS*)-9-(4-Nitrobenzyl)-2,3,3a,4,9,10a-hexahydrobenzo[b]cyclopenta[e][1,4]diazepin-10(1H)-one

Product 1

HCID 53680008(3aR*,10aS*)-9-(4-Aminobenzyl)-2,3,3a,4,9,10a-hexahydrobenzo[b]cyclopenta[e][1,4]diazepin-10(1H)-oneYield 71%

Reagents, catalysts & solvents 3

HCID 178418390HCID 178418390, compoundCatalystHCID 887MethanolSolventHCID 8028TetrahydrofuranSolvent

Procedure

(3aR*,10aS*)-9-(4-Nitrobenzyl)-2,3,3a,4,9,10a-hexahydrobenzo[b]cyclopenta[e][1,4]diazepin-10(1H)-one (5.06 g, 15 mmol) and 10% palladium-carbon (hydrous) (0.5 g) were suspended in a mixture of tetrahydrofuran (15 mL) and methanol (15 mL). The suspension was stirred for 4.5 hours at room temperature. The catalyst was filtered off, and the filtrate was concentrated under reduced pressure. The concentrate was crystallized from ethyl acetate-hexane to give 3.27 g (yield 71%) of the titled compound, m.p. 149.1°-149.6° C.

Workup

  1. filtrationThe catalyst was filtered off
  2. concentrationthe filtrate was concentrated under reduced pressure
  3. customThe concentrate was crystallized from ethyl acetate-hexane

Sources & evidence

ORD record
ord-d7ea1f0c8acd420791011b21efaad0df
Source dataset
uspto-grants-1998_11
Patent number
US05834463

Reaction notes

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