Phosphate → 3-(Hydroxymethyl)-N,N-bis{[2-(trimethylsilyl)ethoxy]methyl}benzenesulfonamide

HRID 916814ノート

反応式

HRID 916814 の反応式
[H-].[Na+].[OH:3][CH2:4][C:5]1[CH:6]=[C:7]([S:11]([NH2:14])(=[O:13])=[O:12])[CH:8]=[CH:9][CH:10]=1.[CH3:15][Si:16]([CH3:23])([CH3:22])[CH2:17][CH2:18][O:19][CH2:20]Cl.P([O-])([O-])([O-])=O>CN(C=O)C.C(OCC)(=O)C>[OH:3][CH2:4][C:5]1[CH:6]=[C:7]([S:11]([N:14]([CH2:20][O:19][CH2:18][CH2:17][Si:16]([CH3:23])([CH3:22])[CH3:15])[CH2:20][O:19][CH2:18][CH2:17][Si:16]([CH3:23])([CH3:22])[CH3:15])(=[O:12])=[O:13])[CH:8]=[CH:9][CH:10]=1

参加物

7

反応物 4

HCID 1061PhosphateHCID 24758Sodium hydrideHCID 27242712-Chloromethyl 2-(trimethylsilyl)ethyl etherHCID 231337993-(Hydroxymethyl)benzene-1-sulfonamide

生成物 1

HCID 468348293-(Hydroxymethyl)-N,N-bis{[2-(trimethylsilyl)ethoxy]methyl}benzenesulfonamide

試薬・触媒・溶媒 2

HCID 6228Dimethylformamide溶媒HCID 8857Ethyl Acetate溶媒

実験手順

Sodium hydride (60% oil dispersion, 0.315 g) was added to 3-hydroxymethylbenzenesulfonamide (0.67 g) with stirring in DMF (20 ml) under nitrogen at 20°. After 15 min, 2-(trimethylsilyl)ethoxymethyl chloride (1.27 ml) was added and stirring was continued for 1.5 h. pH 6.4 Phosphate buffer and ethyl acetate were added. The aqueous layer was extracted twice with ethyl acetate and the combined organic layers were washed twice with brine, dried (MgSO4) and evaporated to an oil. This oil in dichloromethane was loaded onto a column of silica gel (75 g) set up in 10% ethyl acetate in 40-60 petroleum ether. The column was run with this, then 20%, 30% and 50% ethyl acetate in 40-60 petroleum ether to give the title compound (0.74 g) LCMS RT=4.00 min.

後処理

  1. waitwas continued for 1.5 h.
  2. extractionThe aqueous layer was extracted twice with ethyl acetate
  3. washthe combined organic layers were washed twice with brine
  4. dry with materialdried (MgSO4)
  5. customevaporated to an oil

出典と根拠

ORDレコード
ord-e5dcef96f04b491296cc3d16eb085358
出典データセット
uspto-grants-2007_09
特許番号
US07271197B2

反応ノート

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