Dimethylformamide → 3-[2-tert-Butyl-4-(2-hydroxy-ethoxy)-5-methyl-phenylsulfanyl]-4-hydroxy-6,6-bis-[2-(4-hydroxy-phenyl)-ethyl]-5,6-dihydro-pyran-2-one

HRID 356547ノート

反応式

HRID 356547 の反応式
[OH:1][C:2]1[CH2:7][C:6]([CH2:17][CH2:18][C:19]2[CH:24]=[CH:23][C:22]([OH:25])=[CH:21][CH:20]=2)([CH2:8][CH2:9][C:10]2[CH:15]=[CH:14][C:13]([OH:16])=[CH:12][CH:11]=2)[O:5][C:4](=[O:26])[CH:3]=1.[C:27]([C:31]1[CH:36]=[C:35]([O:37][CH2:38][CH2:39][O:40][Si](C(C)(C)C)(C)C)[C:34]([CH3:48])=[CH:33][C:32]=1[S:49]S(C1C=CC(C)=CC=1)(=O)=O)([CH3:30])([CH3:29])[CH3:28].C([O-])([O-])=O.[K+].[K+].CN(C=O)C>CO.Cl>[C:27]([C:31]1[CH:36]=[C:35]([O:37][CH2:38][CH2:39][OH:40])[C:34]([CH3:48])=[CH:33][C:32]=1[S:49][C:3]1[C:4](=[O:26])[O:5][C:6]([CH2:17][CH2:18][C:19]2[CH:20]=[CH:21][C:22]([OH:25])=[CH:23][CH:24]=2)([CH2:8][CH2:9][C:10]2[CH:11]=[CH:12][C:13]([OH:16])=[CH:14][CH:15]=2)[CH2:7][C:2]=1[OH:1])([CH3:30])([CH3:29])[CH3:28]

参加物

7

反応物 4

HCID 6228DimethylformamideHCID 11430Potassium CarbonateHCID 10791774Toluene-4-thiosulfonic acid S-{2-tert-butyl-4-[2-(tert-butyl-dimethyl-silanyloxy)-ethoxy]-5-methyl-phenyl}esterHCID 546822654-Hydroxy-6,6-bis-[2-(4-hydroxy-phenyl)-ethyl]-5,6-dihydro-pyran-2-one

生成物 1

HCID 546822993-[2-tert-Butyl-4-(2-hydroxy-ethoxy)-5-methyl-phenylsulfanyl]-4-hydroxy-6,6-bis-[2-(4-hydroxy-phenyl)-ethyl]-5,6-dihydro-pyran-2-one

試薬・触媒・溶媒 2

HCID 313Hydrochloric Acid溶媒HCID 887Methanol溶媒

実験手順

The title compound was synthesized using General Method 9 using 0.07 g (2 mmol) of 4-hydroxy-6,6-bis-[2-(4-hydroxy-phenyl)-ethyl]-5,6-dihydro-pyran-2-one (prepared in Example PP), 1.00 g (2 mmol) of toluene-4-thiosulfonic acid S-{2-tert-butyl-4-[2-(tert-butyl-dimethyl-silanyloxy)-ethoxy]-5-methyl-phenyl} ester (prepared in Example PPP), 1.06 g (8 mmol) K2CO3, and DMF (5 mL). The solid which was obtained was then dissolved in 20 mL MeOH and 2 mL of 1N HCl. After 15 minutes the reaction was concentrated and the residue partitioned between EtOAc and H2O; the organic layer was separated, dried (Na2SO4) and concentrated. Trituration with Et2O yielded the title compound, m.p. 106°-107° C. 1H NMR (DMSO-d6) δ 1.49 (s, 9 H), 1.75 (s, 3 H), 2.0 (t, 4 H), 2.5 (t, 4 H), 3.4 (dd, 2 H), 3.7 (bs, 2 H), 3.95 (t, 2 H), 4.8 (br s, 1 H), 6.66 (d, 4 H), 6.7 (s, 1 H), 6.8 (s, 1 H), 6.98 (d, 4 H), 9.17 (s, 2 H).

後処理

  1. customThe title compound was synthesized
  2. customThe solid which was obtained
  3. concentrationAfter 15 minutes the reaction was concentrated
  4. customthe residue partitioned between EtOAc and H2O
  5. customthe organic layer was separated
  6. dry with materialdried (Na2SO4)
  7. concentrationconcentrated

出典と根拠

ORDレコード
ord-602010b937804b82ae923dd39b34c0a9
出典データセット
uspto-grants-1998_11
特許番号
US05834506

反応ノート

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