2,4-Dichlorophenylboric acid → 5-(2,4-Dichloro-phenyl)-2-[4-(4-pyrrolidin-1-ylmethyl-phenyl)-but-1-ynyl]-pyridine

HRID 271639

Reaction equation

Br[C:2]1[CH:3]=[CH:4][C:5]([C:8]#[C:9][CH2:10][CH2:11][C:12]2[CH:17]=[CH:16][C:15]([CH2:18][N:19]3[CH2:23][CH2:22][CH2:21][CH2:20]3)=[CH:14][CH:13]=2)=[N:6][CH:7]=1.[Cl:24][C:25]1[CH:30]=[C:29]([Cl:31])[CH:28]=[CH:27][C:26]=1OB(O)O>O1CCOCC1.C([O-])([O-])=O.[Na+].[Na+]>[Cl:24][C:25]1[CH:30]=[C:29]([Cl:31])[CH:28]=[CH:27][C:26]=1[C:2]1[CH:3]=[CH:4][C:5]([C:8]#[C:9][CH2:10][CH2:11][C:12]2[CH:17]=[CH:16][C:15]([CH2:18][N:19]3[CH2:23][CH2:22][CH2:21][CH2:20]3)=[CH:14][CH:13]=2)=[N:6][CH:7]=1

Participants

Conditions

Temperature: 110 °C

Procedure

10 mg (0.01 mmol) tetrakis-triphenylphosphane-palladium are added to a suspension of 60 mg (0.16 mmol) 5-bromo-2-[4-(4-pyrrolidin-1-ylmethyl-phenyl)-but-1-ynyl]-pyridine and 63 mg (0.32 mmol) 2,4-dichlorophenylboric acid in 4 mL 1,4-dioxane and 1 mL 2 M Na2CO3 solution and the reaction mixture is stirred for 1 h at 110° C. The mixture is evaporated down i.vac. and the residue is extracted twice with in each case 15 mL EtOH. The solvent is removed and the residue is purified by HPLC.

Workup

customThe mixture is evaporated down i.vac
extractionand the residue is extracted twice with in each case 15 mL EtOH
customThe solvent is removed
customthe residue is purified by HPLC

Sources & evidence

ORD record: ord-14c34c2d8cb3446bb7d5fcb83ac0b49b
Source dataset: uspto-grants-2008_11
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US07452911B2

Linked notes

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