HCID 21071406, compound → HCID 21071593, compound

HRID 1371914Notes

Reaction equation

HRID 1371914 reaction equation
[CH2:1]([O:4][C:5]1[CH:6]=[C:7]2[C:11](=[CH:12][CH:13]=1)[N:10]([Si:14]([CH:21]([CH3:23])[CH3:22])([CH:18]([CH3:20])[CH3:19])[CH:15]([CH3:17])[CH3:16])[CH:9]=[C:8]2[CH2:24][CH2:25][N:26]1C(=O)C2C(=CC=CC=2)C1=O)[CH2:2][CH3:3]>CCO.O.NN>[CH2:1]([O:4][C:5]1[CH:6]=[C:7]2[C:11]([N:10]([Si:14]([CH:21]([CH3:22])[CH3:23])([CH:18]([CH3:20])[CH3:19])[CH:15]([CH3:16])[CH3:17])[CH:9]=[C:8]2[CH2:24][CH2:25][NH2:26])=[CH:12][CH:13]=1)[CH2:2][CH3:3]

Participants

4

Reactant 1

HCID 21071406HCID 21071406, compound

Product 1

HCID 21071593HCID 21071593, compound

Reagents, catalysts & solvents 2

HCID 702EthanolSolventHCID 24654Hydrazine hydrate (1:1)Solvent

Procedure

Combine 2-(2-(5-propoxy-1-triisopropylsilanyl-1H-indol-3-yl)ethyl)isoindole-1,3-dione (416 mg, 0.8 mmol) in 20 mL EtOH and 1 mL hydrazine hydrate. Reflux for 3 hours, filter through celite and concentrate to residue. Dissolve the residue in 10 mL MeOH and load onto a 12 g SCX ion exchange cartridge and rinse sequentially with MeOH, DMP, then MeOH. Elute the product with 2 M NH3 in MeOH to give the title compound as an oil: ISMS 375 (M+1); 1H NMR (CDCl3) 7.34–7.32 (d, 1H), 7.02 (s, 1H), 7.00–6.99 (d, 1H), 6.80–6.77 (m, 1H), 3.97–3.94 (m, 2H), 3.01–2.98 (m, 2H), 2.86–2.83 (m, 2H), 1.88–1.76 (m 2H), 1.70–1.58 (m, 3H), 1.3 (bs, 2H), 1.14–1.08 (m, 18H), 1.06–1.02 (t, 3H).

Workup

  1. temperatureReflux for 3 hours
  2. filtrationfilter through celite
  3. concentrationconcentrate to residue
  4. dissolutionDissolve the residue in 10 mL MeOH
  5. washload onto a 12 g SCX ion exchange cartridge and rinse sequentially with MeOH, DMP
  6. washElute the product with 2 M NH3 in MeOH

Sources & evidence

ORD record
ord-bb2de4e5599f473d802879e110cf21d6
Source dataset
uspto-grants-2007_01
Patent number
US07157488B2

Reaction notes

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