Methyl chloroformate → 6-(2-Methoxy-4-methoxycarbonyloxyphenyl)-5-(5-methylthiophen-2-ylcarbonyloxymethyl)-2,2,4-trimethyl-1,2-dihydroquinoline

HRID 1043681Notes

Reaction equation

HRID 1043681 reaction equation
[OH:1][C:2]1[CH:7]=[CH:6][C:5]([C:8]2[C:9]([CH2:21][O:22][C:23]([C:25]3[S:26][C:27]([CH3:30])=[CH:28][CH:29]=3)=[O:24])=[C:10]3[C:15](=[CH:16][CH:17]=2)[NH:14][C:13]([CH3:19])([CH3:18])[CH:12]=[C:11]3[CH3:20])=[C:4]([O:31][CH3:32])[CH:3]=1.C(N(CC)CC)C.[C:40](Cl)(=[O:43])[O:41][CH3:42]>C(Cl)Cl>[CH3:32][O:31][C:4]1[CH:3]=[C:2]([O:1][C:40]([O:41][CH3:42])=[O:43])[CH:7]=[CH:6][C:5]=1[C:8]1[C:9]([CH2:21][O:22][C:23]([C:25]2[S:26][C:27]([CH3:30])=[CH:28][CH:29]=2)=[O:24])=[C:10]2[C:15](=[CH:16][CH:17]=1)[NH:14][C:13]([CH3:18])([CH3:19])[CH:12]=[C:11]2[CH3:20]

Participants

5

Reactant 3

HCID 6586Methyl chloroformateHCID 8471TriethylamineHCID 250156246-(4-Hydroxy-2-methoxyphenyl)-5-(5-methylthiophen-2-ylcarbonyloxymethyl)-2,2,4-trimethyl-1,2-dihydroquinoline

Product 1

HCID 248910336-(2-Methoxy-4-methoxycarbonyloxyphenyl)-5-(5-methylthiophen-2-ylcarbonyloxymethyl)-2,2,4-trimethyl-1,2-dihydroquinolineYield 79%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

6-(4-Hydroxy-2-methoxyphenyl)-5-(5-methylthiophen-2-ylcarbonyloxymethyl)-2,2,4-trimethyl-1,2-dihydroquinoline (Reference Compound No. 3-2, 31.7 mg, 0.0705 mmol) was dissolved in anhydrous methylene dichloride (1 mL), triethylamine (30 μL, 0.22 mmol) and methyl chlorocarbonate (10 μL, 0.13 mmol) were added thereto, and then the mixture was stirred at room temperature for 1 hour. The reaction mixture was purified by silica gel column chromatography (hexane-ethyl acetate) to give the titled compound (26.8 mg) as a pale yellow amorphous product. (Yield 79%)

Workup

  1. customThe reaction mixture was purified by silica gel column chromatography (hexane-ethyl acetate)

Sources & evidence

ORD record
ord-51906c7c8e4646cebab8b8ee82326005
Source dataset
uspto-grants-2013_10
Patent number
US08563551B2

Reaction notes

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