Nitrogen → (2,6-Dimethoxy-naphthalen-1-yl)-[4-(2-piperidin-1-yl-ethoxy)phenyl]-methanone

HRID 748934

Reaction equation

[CH3:1][O:2][C:3]1[CH:12]=[CH:11][C:10]2[C:5](=[CH:6][CH:7]=[C:8]([O:13][CH3:14])[CH:9]=2)[CH:4]=1.N#N.[N:17]1([CH2:23][CH2:24][O:25][C:26]2[CH:34]=[CH:33][C:29]([C:30](Cl)=[O:31])=[CH:28][CH:27]=2)[CH2:22][CH2:21][CH2:20][CH2:19][CH2:18]1.[Cl-].[Al+3].[Cl-].[Cl-]>C(Cl)Cl.O>[CH3:14][O:13][C:8]1[CH:7]=[CH:6][C:5]2[C:10](=[CH:11][CH:12]=[C:3]([O:2][CH3:1])[CH:4]=2)[C:9]=1[C:30]([C:29]1[CH:28]=[CH:27][C:26]([O:25][CH2:24][CH2:23][N:17]2[CH2:22][CH2:21][CH2:20][CH2:19][CH2:18]2)=[CH:34][CH:33]=1)=[O:31]

Participants

Conditions

Temperature: 0 °C

Procedure

Dissolve 2,6-dimethoxynaphthalene (1.0 eq.) in CH2Cl2 (5 volume eq.) at ambient temperature in a dry round bottom flask equipped with stir bar, temperature probe and N2 line. Cool the solution to 0° C. with an ice bath, and add 4-(2-piperidin-1-yl-ethoxy)-benzoyl chloride (1.1 eq.). Add aluminum chloride (2.0 eq.). Once the reaction is determined to be complete, quench the reaction slowly with 1 N NaOH and dilute with additional water and CH2Cl2. Wash the aqueous layer with CH2Cl2 (20 mL). Combine the organic extracts and wash with brine and dry (Na2SO4). Recrystallize the crude product from methanol to give (2,6-dimethoxy-naphthalen-1-yl)-[4-(2-piperidin-1-yl-ethoxy)-phenyl]-methanone.

Workup

customequipped
customquench
customthe reaction slowly with 1 N NaOH
washWash the aqueous layer with CH2Cl2 (20 mL)
washCombine the organic extracts and wash with brine
dry with materialdry (Na2SO4)
customRecrystallize the crude product from methanol

Sources & evidence

ORD record: ord-03b230a1ea134a60b8fda28f8e336702
Source dataset: uspto-grants-2008_07
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US07399867B2

Linked notes

Loading…