Tetrabutylammonium Fluoride → 4-{2-{Cyclopropylmethyl[5-methoxy-2-(6-methoxy-1,2,3,4-tetrahydronaphthalen-2-yl)phenyl]amino}ethyl}phenol

HRID 1434154Notes

Reaction equation

HRID 1434154 reaction equation
[Si]([O:8][C:9]1[CH:14]=[CH:13][C:12]([CH2:15][CH2:16][N:17]([C:23]2[CH:28]=[C:27]([O:29][CH3:30])[CH:26]=[CH:25][C:24]=2[CH:31]2[CH2:40][CH2:39][C:38]3[C:33](=[CH:34][CH:35]=[C:36]([O:41][CH3:42])[CH:37]=3)[CH2:32]2)[C:18]([CH:20]2[CH2:22][CH2:21]2)=O)=[CH:11][CH:10]=1)(C(C)(C)C)(C)C.[Si](OC1C=CC(CCN(CC2CC2)C2C=C(OC)C=CC=2C2CCC3C(=CC=C(OC)C=3)C2)=CC=1)(C(C)(C)C)(C)C.[F-].C([N+](CCCC)(CCCC)CCCC)CCC>>[CH:20]1([CH2:18][N:17]([C:23]2[CH:28]=[C:27]([O:29][CH3:30])[CH:26]=[CH:25][C:24]=2[CH:31]2[CH2:40][CH2:39][C:38]3[C:33](=[CH:34][CH:35]=[C:36]([O:41][CH3:42])[CH:37]=3)[CH2:32]2)[CH2:16][CH2:15][C:12]2[CH:13]=[CH:14][C:9]([OH:8])=[CH:10][CH:11]=2)[CH2:22][CH2:21]1

Participants

4

Reactant 3

HCID 2724141Tetrabutylammonium FluorideHCID 57933985Cyclopropanecarboxylic acid {2-[4-(tert-butyldimethylsilyloxy)phenyl]ethyl}[5-methoxy-2-(6-methoxy-1,2,3,4-tetrahydronaphthalen-2-yl)phenyl]amideHCID 66627570{2-[4-(Tert-butyldimethylsilyloxy)phenyl]ethyl}cyclopropylmethyl[5-methoxy-2-(6-methoxy-1,2,3,4-tetrahydronaphthalen-2-yl)phenyl]amine

Product 1

HCID 230875484-{2-{Cyclopropylmethyl[5-methoxy-2-(6-methoxy-1,2,3,4-tetrahydronaphthalen-2-yl)phenyl]amino}ethyl}phenolYield 94.6%

Procedure

Synthesized from cyclopropanecarboxylic acid {2-[4-(tert-butyldimethylsilyloxy)phenyl]ethyl}[5-methoxy-2-(6-methoxy-1,2,3,4-tetrahydronaphthalen-2-yl)phenyl]amide (2.3 g) according to an analogous synthetic method to Example 337, to a filtrate of the resulting {2-[4-(tert-butyldimethylsilyloxy)phenyl]ethyl}cyclopropylmethyl[5-methoxy-2-(6-methoxy-1,2,3,4-tetrahydronaphthalen-2-yl)phenyl]amine was added tetrabutylammonium fluoride (1M solution in tetrahydrofuran) (4 ml), and the solution was stirred for 20 minutes at room temperature. The reaction solution was concentrated in vacuo, extracted with ethyl acetate, then sequentially washed with water and brine, dried over anhydrous magnesium sulfate, and then the solvent was evaporated in vacuo. The residue was purified by silica gel column chromatography (hexane-ethyl acetate system) to provide the title compound (1.7 g).

Workup

  1. concentrationThe reaction solution was concentrated in vacuo
  2. extractionextracted with ethyl acetate
  3. washsequentially washed with water and brine
  4. dry with materialdried over anhydrous magnesium sulfate
  5. customthe solvent was evaporated in vacuo
  6. customThe residue was purified by silica gel column chromatography (hexane-ethyl acetate system)

Sources & evidence

ORD record
ord-e647ff47ed2040978fd8135dfac7dc43
Source dataset
uspto-grants-2009_11
Patent number
US07612114B2

Reaction notes

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