3-Butyn-1-OL → HCID 5278408, compound

HRID 2086601Notes

Reaction equation

HRID 2086601 reaction equation
[Cl:1][C:2]1[CH:31]=[CH:30][C:5]([CH2:6][NH:7][C:8]([C:10]2[C:19](=[O:20])[C:18]3[C:13](=[C:14](I)[CH:15]=[C:16]([CH2:21][CH:22]4[CH2:27][CH2:26][O:25][CH2:24][CH2:23]4)[CH:17]=3)[N:12]([CH3:29])[CH:11]=2)=[O:9])=[CH:4][CH:3]=1.[CH2:32]([OH:36])[CH2:33][C:34]#[CH:35]>C(NCC)C.C(Cl)Cl.[Cu](I)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>[Cl:1][C:2]1[CH:31]=[CH:30][C:5]([CH2:6][NH:7][C:8]([C:10]2[C:19](=[O:20])[C:18]3[C:13](=[C:14]([C:35]#[C:34][CH2:33][CH2:32][OH:36])[CH:15]=[C:16]([CH2:21][CH:22]4[CH2:27][CH2:26][O:25][CH2:24][CH2:23]4)[CH:17]=3)[N:12]([CH3:29])[CH:11]=2)=[O:9])=[CH:4][CH:3]=1

Participants

7

Reactant 2

HCID 135663-Butyn-1-OLHCID 22724547HCID 22724547, compound

Product 1

HCID 5278408HCID 5278408, compound

Reagents, catalysts & solvents 4

HCID 83717Copper iodideCatalystHCID 178418476HCID 178418476, compoundCatalystHCID 6344DichloromethaneSolventHCID 8021DiethylamineSolvent

Procedure

A solution of N-(4-chlorobenzyl)-8-iodo-1-methyl-4-oxo-6-(tetrahydro-2H-pyran-4-ylmethyl)-1,4-dihydro-3-quinolinecarboxamide (0.074 g), copper iodide (0.013 g), Pd(PPh3)2Cl2 (0.007 g) and 3-butyn-1-ol (0.02 mL) in 7 mL diethylamine is stirred at room temperature for 3 days. The reaction is partitioned between CH2Cl2 and H2O. The aqueous is extracted 3×with CH2Cl2. The organics are combined, dried over Na2SO4, filtered and concentrated. The residue is dissolved in CH2Cl2 and adsorbed onto silica. Purification by Biotage Flash 40S chromatography (eluent CH2Cl2 (1L), 0.5% MeOH/CH2Cl2 (1L), 1% MeOH/CH2Cl2 (1L), 1.5% MeOH/CH2Cl2 (1L), 2% MeOH/CH2Cl2 (1L), 3% MeOH/CH2Cl2 (1L), 5% MeOH/CH2Cl2 (1L), 7% MeOH/CH2Cl2 (1L)) affords the product as a tan residue. The residue is dissolved in a minimal amount of CH2Cl2 and hexanes are added to affect recrystallization. The solution is placed in the freezer for 18 h after which the product is collected and dried (0.037 g, 57%).

Workup

  1. customThe reaction is partitioned between CH2Cl2 and H2O
  2. extractionThe aqueous is extracted 3×with CH2Cl2
  3. dry with materialdried over Na2SO4
  4. filtrationfiltered
  5. concentrationconcentrated
  6. dissolutionThe residue is dissolved in CH2Cl2
  7. customPurification by Biotage Flash 40S chromatography (eluent CH2Cl2 (1L), 0.5% MeOH/CH2Cl2 (1L), 1% MeOH/CH2Cl2 (1L), 1.5% MeOH/CH2Cl2 (1L), 2% MeOH/CH2Cl2 (1L), 3% MeOH/CH2Cl2 (1L), 5% MeOH/CH2Cl2 (1L), 7% MeOH/CH2Cl2 (1L))
  8. customaffords the product as a tan residue
  9. additionare added
  10. customrecrystallization
  11. customafter which the product is collected
  12. customdried (0.037 g, 57%)

Sources & evidence

ORD record
ord-b7e4abc8fabf42fab34cb4a47e9bdc03
Source dataset
uspto-grants-2004_04
Patent number
US06727248B2

Reaction notes

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