8-Chloro-1-(4-oxo-cyclohexyl)-4H,6H-2,3,5,10b-tetraaza-benzo[e]azulene-5-carboxylic acid tert-butyl ester → 8-Chloro-1-(4-hydroxy-4-o-tolyl-cyclohexyl)-4H,6H-2,3,5,10b-tetraaza-benzo[e]azulene-5-carboxylic acid tert-butyl ester

HRID 1255455Notes

Reaction equation

HRID 1255455 reaction equation
[C:1]([O:5][C:6]([N:8]1[CH2:17][C:16]2[N:12]([C:13]([CH:18]3[CH2:23][CH2:22][C:21](=[O:24])[CH2:20][CH2:19]3)=[N:14][N:15]=2)[C:11]2[CH:25]=[CH:26][C:27]([Cl:29])=[CH:28][C:10]=2[CH2:9]1)=[O:7])([CH3:4])([CH3:3])[CH3:2].[C:30]1([CH3:38])[CH:35]=[CH:34][CH:33]=[CH:32][C:31]=1[Mg]Cl>O1CCCC1>[C:1]([O:5][C:6]([N:8]1[CH2:17][C:16]2[N:12]([C:13]([CH:18]3[CH2:19][CH2:20][C:21]([OH:24])([C:31]4[CH:32]=[CH:33][CH:34]=[CH:35][C:30]=4[CH3:38])[CH2:22][CH2:23]3)=[N:14][N:15]=2)[C:11]2[CH:25]=[CH:26][C:27]([Cl:29])=[CH:28][C:10]=2[CH2:9]1)=[O:7])([CH3:4])([CH3:2])[CH3:3]

Participants

4

Reactant 2

HCID 584587428-Chloro-1-(4-oxo-cyclohexyl)-4H,6H-2,3,5,10b-tetraaza-benzo[e]azulene-5-carboxylic acid tert-butyl esterHCID 178424304HCID 178424304, compound

Product 1

HCID 584587368-Chloro-1-(4-hydroxy-4-o-tolyl-cyclohexyl)-4H,6H-2,3,5,10b-tetraaza-benzo[e]azulene-5-carboxylic acid tert-butyl esterYield 70%

Reagents, catalysts & solvents 1

HCID 8028TetrahydrofuranSolvent2×

Procedure

To a solution of 8-chloro-1-(4-oxo-cyclohexyl)-4H,6H-2,3,5,10b-tetraaza-benzo[e]azulene-5-carboxylic acid tert-butyl ester (0.2 g, 0.5 mmol) in dry tetrahydrofuran (5 ml) was added a 1M o-tolylmagnesium chloride solution in tetrahydrofuran (0.5 ml, 0.5 mmol) at room temperature. After stirring for 2 h the reaction mixture was quenched with aqueous saturated ammonium chloride solution and extracted with two portions of ethyl acetate. The combined organic layers were washed with one portion of brine, dried over anhydrous sodium sulfate and concentrated in vacuo. Flash-chromatography with n-heptane/ethyl acetate as eluent gave the title compound (0.17 g, 70%) as white solid. MS m/e: 509 ([[M+H]]+)

Workup

  1. customwas quenched with aqueous saturated ammonium chloride solution
  2. extractionextracted with two portions of ethyl acetate
  3. washThe combined organic layers were washed with one portion of brine
  4. dry with materialdried over anhydrous sodium sulfate
  5. concentrationconcentrated in vacuo

Sources & evidence

ORD record
ord-84406677a40b4b55a69c8a103b306231
Source dataset
uspto-grants-2013_06
Patent number
US08461151B2

Reaction notes

Loading…