4-Piperidinemethanol → (1-{4-[4-(3-Pyrrolidin-1-ylpropoxy)phenyl]tetrahydropyran-4-ylmethyl}piperidin-4-yl)-methanol

HRID 272865Notes

Reaction equation

HRID 272865 reaction equation
[N:1]1([CH2:6][CH2:7][CH2:8][O:9][C:10]2[CH:15]=[CH:14][C:13]([C:16]3([CH:22]=O)[CH2:21][CH2:20][O:19][CH2:18][CH2:17]3)=[CH:12][CH:11]=2)[CH2:5][CH2:4][CH2:3][CH2:2]1.[NH:24]1[CH2:29][CH2:28][CH:27]([CH2:30][OH:31])[CH2:26][CH2:25]1>CC(C)[O-].[Ti+4].CC(C)[O-].CC(C)[O-].CC(C)[O-].C(O)C>[N:1]1([CH2:6][CH2:7][CH2:8][O:9][C:10]2[CH:11]=[CH:12][C:13]([C:16]3([CH2:22][N:24]4[CH2:29][CH2:28][CH:27]([CH2:30][OH:31])[CH2:26][CH2:25]4)[CH2:21][CH2:20][O:19][CH2:18][CH2:17]3)=[CH:14][CH:15]=2)[CH2:5][CH2:4][CH2:3][CH2:2]1

Participants

5

Reactant 2

HCID 4207714-PiperidinemethanolHCID 598374274-[4-(3-pyrrolidin-1-ylpropoxy)phenyl]tetrahydro-2H-pyran-4-carbaldehyde

Product 1

HCID 59837373(1-{4-[4-(3-Pyrrolidin-1-ylpropoxy)phenyl]tetrahydropyran-4-ylmethyl}piperidin-4-yl)-methanolYield 89.3%

Reagents, catalysts & solvents 2

HCID 11026Titanium isopropoxideCatalystHCID 702EthanolSolvent

Procedure

4-[4-(3-Pyrrolidin-1-ylpropoxy)phenyl]tetrahydro-2H-pyran-4-carbaldehyde (700 mg, 2.205 mmol, 1 wt), 4-piperidinemethanol (485 mg, 4.21 mmol), absolute ethanol (28 ml, 40 vol), activated 3 Å molecular sieves (700 mg), titanium (IV) isopropoxide (3.25 ml, 11.03 mmol) and STAB (3.97 g, 18.7 mmol) was reacted in accordance with the general procedure D. The isolated waxy solid was purified by column chromatography on silica eluting with DCM:MeOH:NH3 95:4:1 to give the title compound as a colorless oil (820 mg, 72%). 1H NMR (400 MHz, CDCl3) δ7.20 (d, 2H), 6.85 (d, 2H), 4.02 (t, 2H), 3.75 (dt, 2H), 3.59-3.46 (m, 2H), 3.42 (d, 2H), 2.63 (t, 2H), 2.53 (br s, 4H), 2.39-2.26 (m, 4H), 2.15-1.03 (m, 18H).

Workup

  1. customThe isolated waxy solid was purified by column chromatography on silica eluting with DCM:MeOH:NH3 95:4:1

Sources & evidence

ORD record
ord-288aee7227b34745b98c862db1b71f1c
Source dataset
uspto-grants-2008_11
Patent number
US07456164B2

Reaction notes

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