Triphenylphosphine → HCID 96536729, compound

HRID 345329Notes

Reaction equation

HRID 345329 reaction equation
[C:1]([O:5][C:6]([N:8]1[CH2:12][C@H:11]([CH2:13][CH2:14]O)[CH2:10][C@@H:9]1[C:16]([O:18][CH3:19])=[O:17])=[O:7])([CH3:4])([CH3:3])[CH3:2].C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1.[Br:39]N1C(=O)CCC1=O>C(Cl)Cl>[C:1]([O:5][C:6]([N:8]1[CH2:12][C@H:11]([CH2:13][CH2:14][Br:39])[CH2:10][C@@H:9]1[C:16]([O:18][CH3:19])=[O:17])=[O:7])([CH3:4])([CH3:3])[CH3:2]

Participants

5

Reactant 3

HCID 11776TriphenylphosphineHCID 67184N-bromobutanimideHCID 131716299HCID 131716299, compound

Product 1

HCID 96536729HCID 96536729, compound

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

To a solution of 0.58 g of cis methyl N-t-butoxycarbonyl-4-(2-hydroxyethyl)pyrrolidine-2-carboxylate in 6 ml methylene chloride is added at 0° 0.577 g triphenylphosphine followed by 0.388 g N-bromosuccinimide. After stirring 0.5 hour, the solvent is evaporated and the residue flash chromatographed using ethyl acetate/hexane (35:65) to afford cis methyl N-t-butoxycarbonyl-4-(2-bromoethyl)-pyrrolidine-2-carboxylate.

Workup

  1. customthe solvent is evaporated
  2. customthe residue flash chromatographed

Sources & evidence

ORD record
ord-2d64a6d2b6474a0e8be4ff773acddbf3
Source dataset
uspto-grants-1991_10
Patent number
US05057506

Reaction notes

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