Diethylamine → HCID 11779758, compound

HRID 465575Notes

Reaction equation

HRID 465575 reaction equation
[OH:1][CH:2]([CH2:6][CH2:7][CH2:8][CH2:9][O:10][CH:11]1[CH2:16][CH2:15][CH2:14][CH2:13][O:12]1)[CH2:3][C:4]#[CH:5].C(NCC)C.Br[C:23]1[CH:24]=[N:25][CH:26]=[CH:27][CH:28]=1>[Cu]I>[N:25]1[CH:26]=[CH:27][CH:28]=[C:23]([C:5]#[C:4][CH2:3][CH:2]([OH:1])[CH2:6][CH2:7][CH2:8][CH2:9][O:10][CH:11]2[CH2:16][CH2:15][CH2:14][CH2:13][O:12]2)[CH:24]=1

Participants

5

Reactant 3

HCID 8021DiethylamineHCID 122863-BromopyridineHCID 10353657HCID 10353657, compound

Product 1

HCID 11779758HCID 11779758, compound

Reagents, catalysts & solvents 1

HCID 24350Copper(1+) iodide; Copper(I) iodide; Cuprous iodide; Cuprous iodide (CuI)Catalyst

Procedure

A mixture of 5.84 g (25.8 mmol) 4-hydroxy-8-(2-tetrahydropyranyloxy)-1-octyne, 4.7 ml diethylamine, 10 ml (100 mmol) 3-bromopyridine, 0.032 g copper (I) iodide, and 0.187 g bis-triphenylphosphine palladium (II) chloride is stirred at room temperature for 18 h. The solvent is evaporated and the residue taken up in ether. The ether layer is washed with saturated aqueous sodium bicarbonate, water, brine, dried, filtered and evaporated to get an amber oil which is purified by chromatography using ether as the eluent to give 1-(3-pyridyl)-4-hydroxy-8-(2-tetrahydropyranyloxy)-1-octyne; NMR (CDCl3): delta 4.6 (brs,1H), 2.6 (d,2H).

Workup

  1. customThe solvent is evaporated
  2. washThe ether layer is washed with saturated aqueous sodium bicarbonate, water, brine
  3. customdried
  4. filtrationfiltered
  5. customevaporated
  6. customto get an amber oil which
  7. customis purified by chromatography

Sources & evidence

ORD record
ord-3fbac1e2adce4b2abd6d8533df5e20ef
Source dataset
uspto-grants-1992_10
Patent number
US05153214

Reaction notes

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