2-(Dimethylamino)ethanol → Methyl[{[4-(2-butynyloxy)phenyl]-sulfonyl}(methyl)amino]{4-[2-(dimethylamino)ethoxy]phenyl}acetate

HRID 1976435Notes

Reaction equation

HRID 1976435 reaction equation
C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1.[CH3:20][N:21]([CH3:25])[CH2:22][CH2:23][OH:24].[CH2:26]([O:30][C:31]1[CH:36]=[CH:35][C:34]([S:37]([N:40]([CH:42]([C:47]2[CH:52]=[CH:51][C:50](O)=[CH:49][CH:48]=2)[C:43]([O:45][CH3:46])=[O:44])[CH3:41])(=[O:39])=[O:38])=[CH:33][CH:32]=1)[C:27]#[C:28][CH3:29].N(C(OCC)=O)=NC(OCC)=O>C1COCC1>[CH3:46][O:45][C:43](=[O:44])[CH:42]([N:40]([S:37]([C:34]1[CH:35]=[CH:36][C:31]([O:30][CH2:26][C:27]#[C:28][CH3:29])=[CH:32][CH:33]=1)(=[O:38])=[O:39])[CH3:41])[C:47]1[CH:52]=[CH:51][C:50]([O:24][CH2:23][CH2:22][N:21]([CH3:25])[CH3:20])=[CH:49][CH:48]=1

Participants

6

Reactant 4

HCID 79022-(Dimethylamino)ethanolHCID 11776TriphenylphosphineHCID 220568ethyl N-ethoxycarbonyliminocarbamateHCID 86587121Methyl [{[4-(2-butynyloxy)phenyl]sulfonyl}(methyl)amino](4-hydroxyphenyl)acetate

Product 1

HCID 131722538Methyl[{[4-(2-butynyloxy)phenyl]-sulfonyl}(methyl)amino]{4-[2-(dimethylamino)ethoxy]phenyl}acetateYield 52.2%

Reagents, catalysts & solvents 1

HCID 8028TetrahydrofuranSolvent

Procedure

To a solution of 0.390 g (1.489 mmol) of triphenylphosphine in 8 mL of THF was added 0.150 mL (1.489 mmol) of N,N-dimethylethanolamine followed by 0.400 g (0.993 mmol) of methyl [{[4-(2-butynyloxy)phenyl]sulfonyl}(methyl)amino](4-hydroxyphenyl)acetate (from Example 179) and 0.234 mL (1.489 mmol) of diethyl azodicarboxylate. The reaction was stirred overnight at room temperature and then concentrated in vacuo. The residue was chromatographed on silica gel eluting with ethyl acetate/hexanes (1:3) to give 0.246 g of methyl[{[4-(2-butynyloxy)phenyl]sulfonyl}(methyl)amino]{4-[2-(dimethylamino)ethoxy]phenyl}acetate as a white solid. Electrospray Mass Spec 475.2 (M+H)+

Workup

  1. concentrationconcentrated in vacuo
  2. customThe residue was chromatographed on silica gel eluting with ethyl acetate/hexanes (1:3)

Sources & evidence

ORD record
ord-a6a91b6b55824c278f5b2427b738a1f8
Source dataset
uspto-grants-2001_05
Patent number
US06225311B1

Reaction notes

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