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Triphenylphosphine → (R)-[4-((E)-3,8-Difluoro-6H-dibenzo[b,e]oxepin-11-ylidenemethyl)-2-nitro-phenyl]-(1-methyl-2-morpholin-4-yl-ethyl)-amine

HRID 1670637
ノート
印刷プレビュー

反応式

HRID 1670637 の反応式
Br[C:2]1[CH:7]=[CH:6][C:5]([NH:8][C@H:9]([CH3:17])[CH2:10][N:11]2[CH2:16][CH2:15][O:14][CH2:13][CH2:12]2)=[C:4]([N+:18]([O-:20])=[O:19])[CH:3]=1.[F:21][C:22]1[CH:23]=[CH:24][C:25]2=[C:26]([CH:47]=1)[O:27][CH2:28][C:29]1[CH:45]=[C:44]([F:46])[CH:43]=[CH:42][C:30]=1/[C:31]/2=[CH:32]\B1OC(C)(C)C(C)(C)O1.C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1.C([O-])(=O)C.[K+]>O1CCOCC1.O.O.C([O-])(=O)C.[Pd+2].C([O-])(=O)C>[F:21][C:22]1[CH:23]=[CH:24][C:25]2=[C:26]([CH:47]=1)[O:27][CH2:28][C:29]1[CH:45]=[C:44]([F:46])[CH:43]=[CH:42][C:30]=1/[C:31]/2=[CH:32]\[C:2]1[CH:7]=[CH:6][C:5]([NH:8][C@H:9]([CH3:17])[CH2:10][N:11]2[CH2:16][CH2:15][O:14][CH2:13][CH2:12]2)=[C:4]([N+:18]([O-:20])=[O:19])[CH:3]=1
参加物実験手順後処理出典と根拠反応ノート

参加物

8

反応物 4

HCID 11776TriphenylphosphineHCID 517044Potassium AcetateHCID 67334620(R)-4-Bromo-N-(1-morpholinopropan-2-yl)-2-nitroanilineHCID 67335490(E)-2-((3,8-difluorodibenzo[b,e]oxepin-11(6H)-ylidene)methyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane

生成物 1

HCID 57748733(R)-[4-((E)-3,8-Difluoro-6H-dibenzo[b,e]oxepin-11-ylidenemethyl)-2-nitro-phenyl]-(1-methyl-2-morpholin-4-yl-ethyl)-amine
収率 48.5%

試薬・触媒・溶媒 3

HCID 167845palladium(II) acetate触媒HCID 962Water溶媒HCID 218864351,4-Dioxane--water (1/1)溶媒

実験手順

Degas three times a mixture of (R)-(4-bromo-2-nitro-phenyl)-(1-methyl-2-morpholin-4-yl-ethyl)-amine (0.037 mol, 12.8 g), (E)-3,8-difluoro-11-(4,4,5,5-tetramethyl[1,3,2]dioxaborolan-2-ylmethylene)-6,11-dihydro-dibenzo[b,e]oxepine (0.037 mol, 13.7 g), triphenylphosphine (0.007 mol, 2.02 g) and potassium acetate (0.074 mol, 7.29 g) in dioxane/water (3:1) (450 mL) with nitrogen. Add palladium (II) acetate (0.001 mol) to the reaction mixture and degas again three times with nitrogen. Heat the resulting reaction mixture at 85° C. for 16 h. Cool the reaction mixture to room temperature, dilute with water, extract with ethyl acetate, combine organic layer, wash with water and brine. Dry the organic phase over anhydrous sodium sulfate, filter, and concentrate. Purify on a silica gel column using 7% ethyl acetate in hexanes as eluent to obtain the title compound (9.1 g, 48%) as an orange solid. 1H NMR (400 MHz, CDCl3), δ 1.26 (d, 3H), 2.44-2.57 (m, 6H), 3.66-3.68 (m, 4H), 3.71-3.78 (m, 1H), 4.89 (br s, 1H), 5.63 (br s, 1H), 6.52 (dd, 1H), 6.61 (d, 1H), 6.67 (dt, 1H), 6.76 (s, 1H), 6.89 (d, 1H), 6.95 (dt, 1H), 7.06-7.10 (m, 1H), 7.19 (dd, 1H), 7.29-7.41 (m, 1H), 7.95 (d, 1H), 8.35 (d, 1H, —NH).

後処理

  1. customDegas three times
  2. temperatureHeat
  3. customthe resulting reaction mixture at 85° C. for 16 h
  4. extractionextract with ethyl acetate
  5. washwash with water and brine
  6. dry with materialDry the organic phase over anhydrous sodium sulfate
  7. filtrationfilter
  8. concentrationconcentrate
  9. customPurify on a silica gel column

出典と根拠

ORDレコード
ord-8161a9a384864c1394b7e2b4e51f5a0e
出典データセット
uspto-grants-2011_08
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US07994164B2

反応ノート

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