Triethylamine → (1-pyrrolidin-1-ylindan-5-yl)propynoic Acid

HRID 735030Notes

Reaction equation

HRID 735030 reaction equation
I[C:2]1[CH:3]=[C:4]2[C:8](=[CH:9][CH:10]=1)[CH:7]([N:11]1[CH2:15][CH2:14][CH2:13][CH2:12]1)[CH2:6][CH2:5]2.[C:16]([OH:20])(=[O:19])[C:17]#[CH:18].C(N(CC)CC)C>C(#N)C.[Cu]I>[N:11]1([CH:7]2[C:8]3[C:4](=[CH:3][C:2]([C:18]#[C:17][C:16]([OH:20])=[O:19])=[CH:10][CH:9]=3)[CH2:5][CH2:6]2)[CH2:15][CH2:14][CH2:13][CH2:12]1

Participants

6

Reactant 3

HCID 8471TriethylamineHCID 10110Propiolic AcidHCID 688183461-(5-Iodoindan-1-yl)pyrrolidine

Product 1

HCID 68817830(1-pyrrolidin-1-ylindan-5-yl)propynoic Acid

Reagents, catalysts & solvents 2

HCID 24350Copper(1+) iodide; Copper(I) iodide; Cuprous iodide; Cuprous iodide (CuI)CatalystHCID 6342AcetonitrileSolvent

Procedure

Under an argon atmosphere at 0° C., 0.5 g (1.59 mmol) of 1-(5-iodoindan-1-yl)pyrrolidine and 123 mL (2 mmol) of propynoic acid are dissolved in 25 mL of acetonitrile. 0.66 mL (4.79 mmol) of triethylamine, 30 mg (0.16 mmol) of copper (I) iodide, and 80 mg (0.11 mmol) of ditriphenylphosphine palladium dichloride are added to this solution and the mixture is stirred for 2 hours, while the solution is allowed to come up to ambient temperature. The purification is carried out by preparative HPLC (eluant: dichloromethane/methanol/ammonia (8:2:0.2)). Yield 0.1 g (24.5% of theory); C16H17NO2 (M=255.31); calc.: molecular ion peak (M+H)+: 256; found: molecular ion peak (M+H)+: 256.

Workup

  1. customto come up to ambient temperature
  2. customThe purification

Sources & evidence

ORD record
ord-ea9c97f40edd4f55833fa381371bd748
Source dataset
uspto-grants-2009_09
Patent number
US07592373B2

Reaction notes

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