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Benzaldehyde → HCID 14291989、化合物

HRID 359207
ノート
印刷プレビュー

反応式

HRID 359207 の反応式
[C:1]1([S:7]([CH:10]([F:12])[F:11])(=[O:9])=[O:8])[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1.[OH-].[Na+].[CH:15](=[O:22])[C:16]1[CH:21]=[CH:20][CH:19]=[CH:18][CH:17]=1>CCCCCCCC[N+](CCCCCCCC)(CCCCCCCC)C.[Cl-].ClCCl>[F:11][C:10]([F:12])([S:7]([C:1]1[CH:2]=[CH:3][CH:4]=[CH:5][CH:6]=1)(=[O:9])=[O:8])[CH:15]([C:16]1[CH:21]=[CH:20][CH:19]=[CH:18][CH:17]=1)[OH:22]
参加物実験手順後処理出典と根拠反応ノート

参加物

6

反応物 3

HCID 240BenzaldehydeHCID 14798Sodium HydroxideHCID 11816356((Difluoromethyl)sulfonyl)benzene

生成物 1

HCID 14291989HCID 14291989、化合物収率 90.3%

試薬・触媒・溶媒 2

HCID 21218Trioctylmethylammonium chloride触媒HCID 6344Dichloromethane
溶媒
2 回

実験手順

A mixture of 100 mg (0.52 mmol) of difluoromethyl phenyl sulfone, 1.0 mL of dichloromethane, 1.0 mL of 50% aqueous sodium hydroxide and 20 mg (0.050 mmol) of Aliquat 336 was stirred vigorously for 10 minutes and treated with a solution of 0.16 mL (1.6 mmol) of benzaldehyde in 0.5 mL of dichloromethane. Vigorous stirring was continued for four hours and the resulting mixture was poured into 20 mL of lN HCL. Extraction of the aqueous mixture with three 10 mL portions of dichloromethane followed by combination, drying (MgSO4), and concentration in vacuo of the organic layers gave a residue which was purified by preparative TLC (two 2 mm silica gel plates eluted with dichloromethane), affording 140 mg (90% yield) of 2,2-difluoro-1-phenyl-2-phenylsulfonylethanol as a solid. Crystallization from toluene provided an analytical sample: mp 77°-79° C.; IR (neat) 3503, 3064, 2922, 1447, 1335, 1312, 1197, 1154, 1113, 1089, 996, 738, 715, 698, 685, 585, 558, cm-1 : lHNMR (CDCl3) δ3.54 (broad s, IH), 5.54 (dd, IH, JHF =21, 3 Hz), 7.20-8.10 (m, 10H); 19F NMR (CDCl3, relative to CFCl3)-106.4 ppm (dd, IF, JFF =238 Hz, JHF =3Hz), -121.6 ppm (dd, lF, JFF =238 Hz, JHF =21 Hz); mass spectrum (70 eV) m/e (relative intensity) 298 (8, M+), 156(18), 109(31), 107(100), 79(30), 78(18), 77(56), 51(20). Anal. Calcd. for C14H12F2O3S:C, 56.37; H, 4.06. Found: C, 56.58; H, 4.08.

後処理

  1. stirringVigorous stirring
  2. waitwas continued for four hours
  3. additionthe resulting mixture was poured into 20 mL of lN HCL
  4. extractionExtraction of the aqueous mixture with three 10 mL portions of dichloromethane
  5. customdrying
  6. concentration(MgSO4), and concentration in vacuo of the organic layers
  7. customgave a residue which
  8. customwas purified by preparative TLC (two 2 mm silica gel plates eluted with dichloromethane)

出典と根拠

ORDレコード
ord-f56bacec31994b2999ca60befeaae3e5
出典データセット
uspto-grants-1991_03
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US04999429

反応ノート

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