Iodo benzene diacetate → 8-(Tert-butyldimethylsilyloxy)-2-(7-methyl-[1,2,4]triazolo[4,3-a]pyridin-3-yl)quinoline

HRID 2035629Notes

Reaction equation

HRID 2035629 reaction equation
[Si:1]([O:8][C:9]1[CH:10]=[CH:11][CH:12]=[C:13]2[C:18]=1[N:17]=[C:16](/[CH:19]=[N:20]/[NH:21][C:22]1[CH:27]=[C:26]([CH3:28])[CH:25]=[CH:24][N:23]=1)[CH:15]=[CH:14]2)([C:4]([CH3:7])([CH3:6])[CH3:5])([CH3:3])[CH3:2].C(O)(=O)C.C(O)(=O)C.IC1C=CC=CC=1>C(Cl)Cl>[Si:1]([O:8][C:9]1[CH:10]=[CH:11][CH:12]=[C:13]2[C:18]=1[N:17]=[C:16]([C:19]1[N:23]3[CH:24]=[CH:25][C:26]([CH3:28])=[CH:27][C:22]3=[N:21][N:20]=1)[CH:15]=[CH:14]2)([C:4]([CH3:7])([CH3:6])[CH3:5])([CH3:3])[CH3:2]

Participants

4

Reactant 2

HCID 12217721Iodo benzene diacetateHCID 67230767N-[(E)-[8-[tert-butyl(dimethyl)silyl]oxyquinolin-2-yl]methylideneamino]-4-methylpyridin-2-amine

Product 1

HCID 672296368-(Tert-butyldimethylsilyloxy)-2-(7-methyl-[1,2,4]triazolo[4,3-a]pyridin-3-yl)quinolineYield 82.6%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

(E)-8-(tert-Butyldimethylsilyloxy)-2-((2-(4-methylpyridin-2-yl)hydrazono)methyl)quinoline (0.720 g, 1.83 mmol) was suspended in DCM (6 mL) at ambient temperature. Iodobenzene diacetate (0.650 g, 2.02 mmol) was added and the solution was allowed to stir at ambient temperature overnight. The mixture was concentrated to an orange oil and purified directly by column chromatography (20% EtOAc/DCM to 50% EtOAc/DCM) to provide the desired product (0.590 g, 82%).

Workup

  1. concentrationThe mixture was concentrated to an orange oil
  2. custompurified directly by column chromatography (20% EtOAc/DCM to 50% EtOAc/DCM)

Sources & evidence

ORD record
ord-b8db10facd0b48bfa0b8bfb22cc8fb5f
Source dataset
uspto-grants-2013_11
Patent number
US08575145B2

Reaction notes

Loading…