Triphenylphosphine → 1-t-Butoxycarbonyl-2-(2-{2-[2-(3-methoxyphenyl)ethyl]phenoxy}ethyl)piperidine

HRID 743262Notes

Reaction equation

HRID 743262 reaction equation
[CH3:1][O:2][C:3]1[CH:4]=[C:5]([CH2:9][CH2:10][C:11]2[CH:16]=[CH:15][CH:14]=[CH:13][C:12]=2[OH:17])[CH:6]=[CH:7][CH:8]=1.[C:18]([O:22][C:23]([N:25]1[CH2:30][CH2:29][CH2:28][CH2:27][CH:26]1[CH2:31][CH2:32]O)=[O:24])([CH3:21])([CH3:20])[CH3:19].C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1.N(C(OCC)=O)=NC(OCC)=O>C(Cl)Cl>[C:18]([O:22][C:23]([N:25]1[CH2:30][CH2:29][CH2:28][CH2:27][CH:26]1[CH2:31][CH2:32][O:17][C:12]1[CH:13]=[CH:14][CH:15]=[CH:16][C:11]=1[CH2:10][CH2:9][C:5]1[CH:6]=[CH:7][CH:8]=[C:3]([O:2][CH3:1])[CH:4]=1)=[O:24])([CH3:21])([CH3:20])[CH3:19]

Participants

6

Reactant 4

HCID 11776TriphenylphosphineHCID 220568ethyl N-ethoxycarbonyliminocarbamateHCID 5103438Tert-butyl 2-(2-hydroxyethyl)piperidine-1-carboxylateHCID 105854482-(2-(3-Methoxyphenyl)ethyl)phenol

Product 1

HCID 105750741-t-Butoxycarbonyl-2-(2-{2-[2-(3-methoxyphenyl)ethyl]phenoxy}ethyl)piperidineYield 32.7%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

Following a procedure similar to that described in Example 36(a), 1.00 g of 2-[2-(3-methoxyphenyl)ethyl]phenol (prepared as described in Preparation 20), 1.51 g of 1-t-butoxycarbonyl-2-(2-hydroxyethyl)piperidine, 1.72 g of triphenylphosphine and 1.14 g of diethyl azodicarboxylate were reacted in 20 ml of methylene chloride. The mixture was then worked up as described in Example 36(a), and the crude product thus obtained was purified by column chromatography through silica gel, using a 4:1 by volume mixture of hexane and ethyl acetate as the eluent, to give 0.630 g (yield 32%) of the title compound as a colorless oil.

Workup

  1. customthe crude product thus obtained
  2. customwas purified by column chromatography through silica gel
  3. additionby volume mixture of hexane and ethyl acetate as the eluent

Sources & evidence

ORD record
ord-d71e7bf7d8e0464899e935b888d3d5c1
Source dataset
uspto-grants-1996_09
Patent number
US05556864

Reaction notes

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