5,6-Bis(phenylmethoxy)-1H-indole → (5,6-Bis-benzyloxy-1H-indol-3-yl)-(2,2,3,3-tetramethyl-cyclopropyl)-methanone

HRID 227428Notes

Reaction equation

HRID 227428 reaction equation
[CH2:1]([O:8][C:9]1[CH:10]=[C:11]2[C:15](=[CH:16][C:17]=1[O:18][CH2:19][C:20]1[CH:25]=[CH:24][CH:23]=[CH:22][CH:21]=1)[NH:14][CH:13]=[CH:12]2)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.C([Mg]Br)C.[CH3:30][C:31]1([CH3:39])[C:33]([CH3:35])([CH3:34])[CH:32]1[C:36](Cl)=[O:37]>ClCCl.[Cl-].[Zn+2].[Cl-]>[CH2:1]([O:8][C:9]1[CH:10]=[C:11]2[C:15](=[CH:16][C:17]=1[O:18][CH2:19][C:20]1[CH:25]=[CH:24][CH:23]=[CH:22][CH:21]=1)[NH:14][CH:13]=[C:12]2[C:36]([CH:32]1[C:33]([CH3:35])([CH3:34])[C:31]1([CH3:39])[CH3:30])=[O:37])[C:2]1[CH:3]=[CH:4][CH:5]=[CH:6][CH:7]=1

Participants

6

Reactant 3

HCID 209205,6-Bis(phenylmethoxy)-1H-indoleHCID 110410022,2,3,3-Tetramethylcyclopropane-1-carbonyl chlorideHCID 178418443HCID 178418443, compound

Product 1

HCID 67269830(5,6-Bis-benzyloxy-1H-indol-3-yl)-(2,2,3,3-tetramethyl-cyclopropyl)-methanoneYield 55%

Reagents, catalysts & solvents 2

HCID 3007855ZincchlorideCatalystHCID 6344DichloromethaneSolvent

Procedure

The 5,6-dibenzyloxyindole (Sigma, 0.60 g, 1.8 mmol), ethylmagnesium bromide (1.0 M solution in THF, 2.2 mL, 2.2 mmol), zinc chloride (1.0 M solution in Et2O, 2.2 mL, 2.2 mmol) and the product of Example 1A (2.7 mmol) in 20 mL of dichloromethane were processed as described in Example 1B to provide the title compound (0.45 g, 0.99 mmol, 55% yield). MS (DCI/NH3) m/z 454 (M+H)+.

Sources & evidence

ORD record
ord-4ad9650b0f224fbe8fc495790ce41221
Source dataset
uspto-grants-2009_07
Patent number
US07560481B2

Reaction notes

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