Triethylamine → Diethyl 4-(triphenylen-2-yl)benzylphosphonate

HRID 871818Notes

Reaction equation

HRID 871818 reaction equation
O1[CH:5]2[C:6]3[C:7]4[C:12]([C:13]5[C:18]([C:19]=3[CH:2]1[CH:3]=[CH:4]2)=[CH:17][CH:16]=[CH:15][CH:14]=5)=[CH:11][CH:10]=[CH:9][CH:8]=4.I[C:21]1[CH:35]=[CH:34][C:24]([CH2:25][P:26](=[O:33])([O:30][CH2:31][CH3:32])[O:27][CH2:28][CH3:29])=[CH:23][CH:22]=1.IC1C=C(C=CC=1)CP(=O)(OCC)OCC.C(N(CC)CC)C>[Zn].Cl[Pd](Cl)([P](C1C=CC=CC=1)(C1C=CC=CC=1)C1C=CC=CC=1)[P](C1C=CC=CC=1)(C1C=CC=CC=1)C1C=CC=CC=1.C1(C)C=CC=CC=1>[CH:5]1[C:6]2[C:7]3[C:12](=[CH:11][CH:10]=[CH:9][CH:8]=3)[C:13]3[C:18](=[CH:17][CH:16]=[CH:15][CH:14]=3)[C:19]=2[CH:2]=[CH:3][C:4]=1[C:21]1[CH:35]=[CH:34][C:24]([CH2:25][P:26](=[O:33])([O:30][CH2:31][CH3:32])[O:27][CH2:28][CH3:29])=[CH:23][CH:22]=1

Participants

8

Reactant 4

HCID 8471TriethylamineHCID 126679791,4-Dihydro-1,4-epoxytriphenyleneHCID 15166405Diethyl ((4-iodophenyl)methyl)phosphonateHCID 58999960Diethyl 3-iodobenzylphosphonate

Product 1

HCID 86675394Diethyl 4-(triphenylen-2-yl)benzylphosphonateYield 70%

Reagents, catalysts & solvents 3

HCID 23994ZincCatalystHCID 178418476HCID 178418476, compoundCatalystHCID 1140TolueneSolvent

Conditions

Temperature
110 °C

Procedure

Compound A (760 mg, 3.11 mmol), zinc (1.85 g, 28.2 mmol), and PdCl2(PPh3)2 (198 mg, 0.28 mmol) were charged in a two-necked bottle. The bottle was then vacuumed and purged with nitrogen, and dried toluene (30 mL), diethyl 4-iodobenzylphosphonate (0.65 mL, 2.82 mmol) or diethyl 3-iodobenzylphosphonate, and triethyl amine (3.91 mL, 28.2 mmol) were added to the bottle. The mixture in the bottle was heated to 110° C. for reaction for 48 hours, and the resulting was filtered to remove metal. The filtrate was condensed to remove the solvent, and then purified by column chromatography (ethyl acetate/hexanes=½) to obtain E (0.90 g, yield=70%) as white solid.

Workup

  1. additionwere added to the bottle
  2. filtrationthe resulting was filtered
  3. customto remove metal
  4. customcondensed
  5. customto remove the solvent
  6. custompurified by column chromatography (ethyl acetate/hexanes=½)
  7. customto obtain E (0.90 g, yield=70%) as white solid

Sources & evidence

ORD record
ord-d0772baeb8574a958c1b3e9da117922b
Source dataset
uspto-grants-2015_03
Patent number
US08974920B2

Reaction notes

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