Triphenylphosphine → HCID 54086791, compound

HRID 343574Notes

Reaction equation

HRID 343574 reaction equation
[CH:1]1([O:6][C:7]2[CH:8]=[C:9]([C:15]3([C:22]#[CH:23])[CH2:20][CH2:19][C:18](=[O:21])[CH2:17][CH2:16]3)[CH:10]=[CH:11][C:12]=2[O:13][CH3:14])[CH2:5][CH2:4][CH2:3][CH2:2]1.I[C:25]1[CH:26]=[C:27]([C:31]2[O:35][C:34]([CH3:36])=[N:33][N:32]=2)[CH:28]=[CH:29][CH:30]=1.C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1>C(N(CC)CC)C.C1C=CC([P]([Pd]([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)[P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1>[CH:1]1([O:6][C:7]2[CH:8]=[C:9]([C:15]3([C:22]#[C:23][C:29]4[CH:30]=[CH:25][CH:26]=[C:27]([C:31]5[O:35][C:34]([CH3:36])=[N:33][N:32]=5)[CH:28]=4)[CH2:16][CH2:17][C:18](=[O:21])[CH2:19][CH2:20]3)[CH:10]=[CH:11][C:12]=2[O:13][CH3:14])[CH2:2][CH2:3][CH2:4][CH2:5]1

Participants

6

Reactant 3

HCID 11776TriphenylphosphineHCID 108289304-(3-Cyclopentyloxy-4-methoxyphenyl)-4-ethynylcyclohexan-1-oneHCID 19349977HCID 19349977, compound

Product 1

HCID 54086791HCID 54086791, compoundYield 45.2%

Reagents, catalysts & solvents 2

HCID 178418397HCID 178418397, compoundCatalystHCID 8471TriethylamineSolvent

Procedure

A stirred mixture of 4-(3-cyclopentyloxy-4-methoxyphenyl)-4-ethynylcyclohexan-1-one (0.100 g, 0.32 mmol) and 5-(3-iodophenyl)-2-methyl-[1,3,4]oxadiazole (0.0915 g, 0.32 mmol) in dry triethylamine (3.5 mL) was treated under argon with a mixture of tetrakis(triphenylphosphine)palladium (0.016 g, 0.013 mmol), cuprous iodide (0.0033 g, 0.017 mmol), and triphenylphosphine (a small crystal) at 75° C. for 1 h. The reaction mixture was concentrated in vacuo, the residue was extracted into methylene chloride and the organic phase was washed with cold dilute hydrochloric acid, water, brine and was dried (sodium sulfate). Purification by chromatography (silica, 10 to 20% ethyl acetate in methylene chloride) followed by drying at 50° C. in vacuo afforded the titled compound as a white powder (0.068 g, 45%), mp 139°-141° C. Anal. (C29H30N2O4.1/3H2O) calcd: C 73.09, H 6.49, N 5.88, found: C 73.07, H 6.35, N 5.79. 1H-NMR (400 MHz, CDCl3) δ 8.15 (t, J=1.6 Hz, 1H), 8.01 (d-t, J=1.4 Hz, J=7.9 Hz, 1H), 7.62 (d-d, J=1.5 Hz, J=7.8 Hz, 1H), 7.49 (t, J=7.9 Hz), 7.21 (d, J=2.3, 1H), 7.14 (d-d, J=8.5 Hz, J=2.4 Hz, 1H), 6.88 (d, J=8.5, 1H), 4.82 (p, J=4.2 Hz, 1H), 3.86 (s, 3H), 3.04 (d-t, J=6.1 Hz, J=14.2, 2H), 2.64 (s, 3H), 2.51 (d,br, J=15.0, 2H), 2.42-2.32 (m, 2H), 2.27 (d-t, J=2.8 Hz, J=14.2 Hz, 2H), 2.00-1.5 (m, 9H with H2O).

Workup

  1. concentrationThe reaction mixture was concentrated in vacuo
  2. extractionthe residue was extracted into methylene chloride
  3. washthe organic phase was washed with cold dilute hydrochloric acid, water, brine
  4. dry with materialwas dried (sodium sulfate)
  5. customPurification by chromatography (silica, 10 to 20% ethyl acetate in methylene chloride)
  6. customby drying at 50° C. in vacuo

Sources & evidence

ORD record
ord-b37a9c5627514a519cc81b3ee9bc07dc
Source dataset
uspto-grants-1999_01
Patent number
US05861421

Reaction notes

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