Triphenylphosphine → HCID 86685699, 화합물

HRID 536576노트

반응식

HRID 536576 반응식
[CH3:1][O:2][C:3](=[O:27])[CH2:4][CH2:5][C:6]1[CH:10]=[C:9]([CH3:11])[N:8]([CH2:12][C:13]2[CH:18]=[C:17](Br)[CH:16]=[CH:15][C:14]=2[O:20][CH2:21][CH:22]([CH2:25][CH3:26])[CH2:23][CH3:24])[N:7]=1.C1C=CC(P(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1.[CH3:47][Si:48]([C:51]#[CH:52])([CH3:50])[CH3:49]>CN(C=O)C.[Cu]I>[CH3:1][O:2][C:3](=[O:27])[CH2:4][CH2:5][C:6]1[CH:10]=[C:9]([CH3:11])[N:8]([CH2:12][C:13]2[CH:18]=[C:17]([C:52]#[C:51][Si:48]([CH3:50])([CH3:49])[CH3:47])[CH:16]=[CH:15][C:14]=2[O:20][CH2:21][CH:22]([CH2:25][CH3:26])[CH2:23][CH3:24])[N:7]=1

참가 물질

6

반응물 3

HCID 11776TriphenylphosphineHCID 66111TrimethylsilylacetyleneHCID 86685698HCID 86685698, 화합물

생성물 1

HCID 86685699HCID 86685699, 화합물수율 48.4%

시약·촉매·용매 2

HCID 24350Copper(1+) iodide; Copper(I) iodide; Cuprous iodide; Cuprous iodide (CuI)촉매HCID 6228Dimethylformamide용매

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온도
120 °C

실험 절차

A mixture of 3-{1-[5-Bromo-2-(2-ethyl-butoxy)-benzyl]-5-methyl-1H-pyrazol-3-yl}-propionic acid methyl ester (0.0774 g, 0.18 mmol), [PdCl2(PPh3)]2 (0.007 g, 0.01 mmol), PPh3 (0.0094 g, 0.018 mmol) mmol), CuI (2 mg, 0.01 mmol), trimethylsilylacetylene (0.0196 g, 0.2 mmol), Et2N (0.07314 g, 2.72 mmol in DMF (1 ml) heated at 120° C. in a microwave reactor under a N2 atmosphere for 50 min. The mixture was partitioned between 0.1M HCl and EtOAc. The organic layer was washed with brine, dried (MgSO4) and evaporated to dryness. The residue was purified by MPLC (20 g SiO2 cartridge, eluent 90% iso-hexane-10% EtOAc) yielding 3-{1-[5-trimethylsilanylethynyl-2-(2-ethyl-butoxy)-benzyl]-5-methyl-1H-pyrazol-3-yl}-propionic acid methyl ester (0.0396 g). This was dissolved in THF (20 ml), MeOH (20 ml), glacial acetic acid (8 ml) and Bu4NF solution (24 ml, 1M) was added. The mixture was stirred at RT overnight then heated at 60° C. for 3 hours, thereafter cooled to RT and partitioned between sat. NH4Cl solution and EtOAc, the organic layer was washed with brine, dried (MgSO4) and evaporated to dryness. The residue was purified by MPLC (20 g SiO2 cartridge, eluent 85% iso-hexane-15% EtOAc) yielding 3-{1-[5-Ethynyl-2-(2-ethyl-butoxy)-benzyl]-5-methyl-1H-pyrazol-3-yl}-propionic acid methyl ester (0.0078 g) which was converted to the title compound following the method in Example 1, Step 8.

후처리

  1. customThe mixture was partitioned between 0.1M HCl and EtOAc
  2. washThe organic layer was washed with brine
  3. dry with materialdried (MgSO4)
  4. customevaporated to dryness
  5. customThe residue was purified by MPLC (20 g SiO2 cartridge, eluent 90% iso-hexane-10% EtOAc)

출처 및 근거

ORD 기록
ord-60b2600711c240b2a81f94a85b8123bc
출처 데이터셋
uspto-grants-2014_10
특허 번호
US08859606B2

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