Triphenylphosphine → (2,5-Dichloro-pyrimidin-4-yl)-{2-fluoro-6-[2-(tetrahydro-pyran-2-yloxy)-ethoxy]-phenyl}-amine

HRID 1041709Notes

Reaction equation

HRID 1041709 reaction equation
[Cl:1][C:2]1[N:7]=[C:6]([NH:8][C:9]2[C:14]([F:15])=[CH:13][CH:12]=[CH:11][C:10]=2[OH:16])[C:5]([Cl:17])=[CH:4][N:3]=1.[O:18]1[CH2:23][CH2:22][CH2:21][CH2:20][CH:19]1[O:24][CH2:25][CH2:26]O.C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1.N(C(OC(C)(C)C)=O)=NC(OC(C)(C)C)=O>C(Cl)Cl>[Cl:1][C:2]1[N:7]=[C:6]([NH:8][C:9]2[C:10]([O:16][CH2:26][CH2:25][O:24][CH:19]3[CH2:20][CH2:21][CH2:22][CH2:23][O:18]3)=[CH:11][CH:12]=[CH:13][C:14]=2[F:15])[C:5]([Cl:17])=[CH:4][N:3]=1

Participants

6

Reactant 4

HCID 11776Triphenylphosphine2×HCID 97268Di-tert-butyl azodicarboxylate2×HCID 41668332-(Oxan-2-yloxy)ethan-1-ol2×HCID 866339952-(2,5-Dichloro-pyrimidin-4-ylamino)-3-fluoro-phenol

Product 1

HCID 86634071(2,5-Dichloro-pyrimidin-4-yl)-{2-fluoro-6-[2-(tetrahydro-pyran-2-yloxy)-ethoxy]-phenyl}-amineYield 44.5%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent2×

Conditions

Temperature
0 °C

Procedure

To a suspension of 2-(2,5-Dichloro-pyrimidin-4-ylamino)-3-fluoro-phenol (0.150 g, 0.547 mmol), 2-(Tetrahydro-pyran-2-yloxy)-ethanol (0.0960 g, 0.657 mmol), and Triphenylphosphine (0.230 g, 0.876 mmol) in Methylene chloride (6 mL) cooled to 0° C. on an ice bath was slowly added Di-tert-butyl azodicarboxylate (0.202 g, 0.876 mmol), at which time a solution formed. The reaction mixture was stirred at rt overnight. The reaction did not go to completion so equal amounts of 2-(Tetrahydro-pyran-2-yloxy)-ethanol, Triphenylphosphine, Methylene chloride, and Di-tert-butyl azodicarboxylate were added as were at the start of the reaction and stirred. The reaction mixture was then concentrated and dissolved in minimal amounts of DCM. It was then purified by silica gel chromatography (ISCO, 0-30% EtOAc) to give (2,5-Dichloro-pyrimidin-4-yl)-{2-fluoro-6-[2-(tetrahydro-pyran-2-yloxy)-ethoxy]-phenyl}-amine as a clear oil (98 mg, 44%). 1H-NMR (CDCl3): 8.17 (s, 1H), 7.22 (m, 1H), 6.93 (s, 1H), 6.82 (m, 2H), 4.63 (s, 1H), 4.22 (m, 2H), 3.98 (m, 1H), 3.74 (m, 2H), 3.47 (m, 1H), 1.67 (m, 2H), 1.55 (m, 2H) 1.49 (m, 2H)

Workup

  1. customat which time a solution formed
  2. additionwere added
  3. customas were at the start of the reaction
  4. stirringstirred
  5. concentrationThe reaction mixture was then concentrated
  6. dissolutiondissolved in minimal amounts of DCM
  7. customIt was then purified by silica gel chromatography (ISCO, 0-30% EtOAc)

Sources & evidence

ORD record
ord-6847a5510b3842dca6f95e47b36458a3
Source dataset
uspto-grants-2013_10
Patent number
US08552186B2

Reaction notes

Loading…