Isopropylamine → 4-(3-Hydroxy-1-azetidinyl)-N-(1-methylethyl)benzamide

HRID 1049133ノート

反応式

HRID 1049133 の反応式
F[P-](F)(F)(F)(F)F.[N:8]1(O[P+](N(C)C)(N(C)C)N(C)C)[C:12]2[CH:13]=CC=C[C:11]=2N=N1.[OH:28][CH:29]1[CH2:32][N:31]([C:33]2[CH:41]=[CH:40][C:36]([C:37]([OH:39])=O)=[CH:35][CH:34]=2)[CH2:30]1.CC(N)C.C(N(CC)C(C)C)(C)C>ClCCl>[OH:28][CH:29]1[CH2:30][N:31]([C:33]2[CH:34]=[CH:35][C:36]([C:37]([NH:8][CH:12]([CH3:13])[CH3:11])=[O:39])=[CH:40][CH:41]=2)[CH2:32]1

参加物

6

反応物 4

HCID 6363IsopropylamineHCID 81531DiisopropylethylamineHCID 151348Benzotriazol-1-yloxy-tris(dimethylamino)phosphonium hexafluorophosphateHCID 838182714-(3-Hydroxyazetidin-1-yl)benzoic acid

生成物 1

HCID 711435344-(3-Hydroxy-1-azetidinyl)-N-(1-methylethyl)benzamide収率 94.3%

試薬・触媒・溶媒 1

HCID 6344Dichloromethane溶媒

実験手順

Benzotriazol-1-yloxytris(dimethylamino)phosphonium hexafluorophosphate (4.64 g, 10.5 mmol, from Aldrich) was added to a mixture of 4-(3-hydroxyazetidin-1-yl)benzoic acid (1.93 g, 10.0 mmol), 2-propanamine (4.26 mL, 50.0 mmol) and N,N-diisopropylethylamine (3.88 g, 30.0 mmol) in dichloromethylene (10 mL). The mixture was stirred at room temperature for 2 h, and diluted with dichloromethane. The mixture was washed with aqueous NaHCO3 and brine, dried over Na2SO4, filtered and concentrated under reduced pressure. The residue was purified by flash chromatography on a silica gel column eluting with ethyl acetate in hexane (gradient: 0-50%) to afford the desired product (2.21 g, 94.3%). LCMS cacld. for C13H19N2O2 (M+1)+: m/z=235.1. Found: 235.1.

後処理

  1. washThe mixture was washed with aqueous NaHCO3 and brine
  2. dry with materialdried over Na2SO4
  3. filtrationfiltered
  4. concentrationconcentrated under reduced pressure
  5. customThe residue was purified by flash chromatography on a silica gel column
  6. washeluting with ethyl acetate in hexane (gradient: 0-50%)

出典と根拠

ORDレコード
ord-4c6b88eae32f4303b98d739f894d0c71
出典データセット
uspto-grants-2016_07
特許番号
US09382231B2

反応ノート

読み込み中…