(2-Oxooxolan-3-yl)(triphenyl)phosphanium bromide → 2(3H)-Furanone, 3-(triphenylphosphoranylidene)-

HRID 973879ノート

反応式

HRID 973879 の反応式
[Br-].[O:2]=[C:3]1[CH:7]([P+:8]([C:21]2[CH:26]=[CH:25][CH:24]=[CH:23][CH:22]=2)([C:15]2[CH:20]=[CH:19][CH:18]=[CH:17][CH:16]=2)[C:9]2[CH:14]=[CH:13][CH:12]=[CH:11][CH:10]=2)[CH2:6][CH2:5][O:4]1>O>[O:2]=[C:3]1[C:7](=[P:8]([C:21]2[CH:22]=[CH:23][CH:24]=[CH:25][CH:26]=2)([C:9]2[CH:10]=[CH:11][CH:12]=[CH:13][CH:14]=2)[C:15]2[CH:20]=[CH:19][CH:18]=[CH:17][CH:16]=2)[CH2:6][CH2:5][O:4]1

参加物

3

反応物 1

HCID 19988396(2-Oxooxolan-3-yl)(triphenyl)phosphanium bromide

生成物 1

HCID 971112(3H)-Furanone, 3-(triphenylphosphoranylidene)-

試薬・触媒・溶媒 1

HCID 962Water溶媒

実験手順

2-Oxotetrahydrofuran-3-yltriphenylphosphonium bromide (1.717 g) was dissolved in water (20 mls) and the solution filtered through kieselguhr. The pH was adjusted to 7.5 with 5M sodium hydroxide. The greyish precipitate was filtered off, washed with 50% ether/acetone and dried, to give the title compound as an off white solid, (0.77 g, 55%), (Found; M+, 346.1124. C22H19O2P requires M, 346.1123); νmax (CH2Cl2) 1645, 1480(w), 1430(w), 1365(w) and 1315(w)cm-1 ; δH (CDCl3) 2.62 (2H, t, 7Hz), 4.27 (2H, t, J 7Hz) and 7.3-7.9 (15H, m).

後処理

  1. filtrationthe solution filtered through kieselguhr
  2. filtrationThe greyish precipitate was filtered off
  3. washwashed with 50% ether/acetone
  4. customdried

出典と根拠

ORDレコード
ord-32e461011d0c405695236975e1d2040f
出典データセット
uspto-grants-1991_11
特許番号
US05064649

反応ノート

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