Triphenylphosphine → 4-(2-Fluoro-4-nitrophenoxy)-5-methyl-6-(2-morpholinoethoxy)pyrrolo[2,1-f][1,2,4]triazine

HRID 347496Notes

Reaction equation

HRID 347496 reaction equation
[F:1][C:2]1[CH:19]=[C:18]([N+:20]([O-:22])=[O:21])[CH:17]=[CH:16][C:3]=1[O:4][C:5]1[C:10]2=[C:11]([CH3:15])[C:12]([OH:14])=[CH:13][N:9]2[N:8]=[CH:7][N:6]=1.[O:23]1[CH2:28][CH2:27][N:26]([CH2:29][CH2:30]O)[CH2:25][CH2:24]1.C1C=CC(P(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1.CC(OC(/N=N/C(OC(C)C)=O)=O)C>C1COCC1>[F:1][C:2]1[CH:19]=[C:18]([N+:20]([O-:22])=[O:21])[CH:17]=[CH:16][C:3]=1[O:4][C:5]1[C:10]2=[C:11]([CH3:15])[C:12]([O:14][CH2:30][CH2:29][N:26]3[CH2:27][CH2:28][O:23][CH2:24][CH2:25]3)=[CH:13][N:9]2[N:8]=[CH:7][N:6]=1

Participants

6

Reactant 4

HCID 11776TriphenylphosphineHCID 611632-MorpholinoethanolHCID 5363146Diisopropyl azodicarboxylateHCID 210816464-(2-Fluoro-4-nitrophenoxy)-5-methylpyrrolo[2,1-f][1,2,4]triazin-6-ol

Product 1

HCID 210816424-(2-Fluoro-4-nitrophenoxy)-5-methyl-6-(2-morpholinoethoxy)pyrrolo[2,1-f][1,2,4]triazineYield 67%

Reagents, catalysts & solvents 1

HCID 8028TetrahydrofuranSolvent

Procedure

To a solution of 4-(2-fluoro-4-nitrophenoxy)-5-methylpyrrolo[2,1-f][1,2,4]triazin-6-ol (55 mg, 0.18 mmol), 2-morpholinoethanol (47 mg, 0.36 mmol), and polymer-bound PPh3 (3.0 mmol/g, 167 mg, 0.50 mmol) in 1 mL of THF at room temperature was added DIAD (72 mg, 0.36 mmol). The mixture was stirred for 1 h and HPLC analysis indicated most of the starting material disappeared. The polymer was filtered off through Celite® and the filtrate was concentrated and purified by preparative HPLC to afford the title compound (50 mg, 67%). MS(ESI+) m/z 418.2 (M+H)+.

Workup

  1. filtrationThe polymer was filtered off through Celite®
  2. concentrationthe filtrate was concentrated
  3. custompurified by preparative HPLC

Sources & evidence

ORD record
ord-1242705741774c4ca8f489eb52bcb23a
Source dataset
uspto-grants-2007_02
Patent number
US07173031B2

Reaction notes

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