Diisopropylamine → methyl (E)-[2-methyl-4-[3-[4-[(5-methylthiophen-2-yl)ethynyl]phenyl]-3-(3-trifluoromethylphenyl)allyloxy]phenoxy]acetate

HRID 549879Notes

Reaction equation

HRID 549879 reaction equation
[C:1]([C:3]1[S:4][C:5]([CH3:8])=[CH:6][CH:7]=1)#[CH:2].C(NC(C)C)(C)C.I[C:17]1[CH:22]=[CH:21][C:20](/[C:23](/[C:40]2[CH:45]=[CH:44][CH:43]=[C:42]([C:46]([F:49])([F:48])[F:47])[CH:41]=2)=[CH:24]\[CH2:25][O:26][C:27]2[CH:38]=[CH:37][C:30]([O:31][CH2:32][C:33]([O:35][CH3:36])=[O:34])=[C:29]([CH3:39])[CH:28]=2)=[CH:19][CH:18]=1>O1CCCC1.[Cu]I.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>[CH3:39][C:29]1[CH:28]=[C:27]([O:26][CH2:25]/[CH:24]=[C:23](\[C:20]2[CH:21]=[CH:22][C:17]([C:2]#[C:1][C:3]3[S:4][C:5]([CH3:8])=[CH:6][CH:7]=3)=[CH:18][CH:19]=2)/[C:40]2[CH:45]=[CH:44][CH:43]=[C:42]([C:46]([F:49])([F:48])[F:47])[CH:41]=2)[CH:38]=[CH:37][C:30]=1[O:31][CH2:32][C:33]([O:35][CH3:36])=[O:34]

Participants

7

Procedure

2-Ethynyl-5-methylthiophene (176 mg, 1.442 mmol) and diisopropylamine (0.475 mL, 3.39 mmol) were added to a solution of methyl (E)-[4-[3-(4-iodophenyl)-3-(3-trifluoromethylphenyl)allyloxy]-2-methylphenoxy]acetate (420 mg, 0.721 mmol; prepared as described in example 34) in tetrahydrofuran (10 mL). The mixture was degassed and copper(I) iodide (11.0 mg, 0.0576 mmol) and bis(triphenylphosphine)palladium(II) dichloride (25.3 mg, 0.0361 mmol) were added. The reaction mixture was stirred at ambient temperature for 20 h and evaporated in vacuo. The residue was purified by flash column chromatography (silica gel Fluka 60, hexanes/ethyl acetate 19:1) yielding methyl (E)-[2-methyl-4-[3-[4-[(5-methylthiophen-2-yl)ethynyl]phenyl]-3-(3-trifluoromethyl phenyl)allyloxy]phenoxy]acetate as yellow oil.

Workup

  1. customThe mixture was degassed
  2. customevaporated in vacuo
  3. customThe residue was purified by flash column chromatography (silica gel Fluka 60, hexanes/ethyl acetate 19:1)

Sources & evidence

ORD record
ord-34840b5f088f4be0b0d37c6289903791
Source dataset
uspto-grants-2011_05
Patent number
US07943613B2

Reaction notes

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