Triphenylphosphine → HCID 10937002, compound

HRID 747742Notes

Reaction equation

HRID 747742 reaction equation
[OH:1][C:2]1[CH:7]=[CH:6][C:5]([CH2:8][C:9]([O:11][CH2:12][CH3:13])=[O:10])=[CH:4][CH:3]=1.[C:14]([O:18][C:19]([N:21]1[CH2:25][CH2:24][C@@H:23](O)[CH2:22]1)=[O:20])([CH3:17])([CH3:16])[CH3:15].C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1.N(C(OCC)=O)=NC(OCC)=O>O1CCCC1.C(OCC)(=O)C>[C:14]([O:18][C:19]([N:21]1[CH2:25][CH2:24][C@H:23]([O:1][C:2]2[CH:3]=[CH:4][C:5]([CH2:8][C:9]([O:11][CH2:12][CH3:13])=[O:10])=[CH:6][CH:7]=2)[CH2:22]1)=[O:20])([CH3:17])([CH3:15])[CH3:16]

Participants

7

Reactant 4

HCID 11776TriphenylphosphineHCID 28310Ethyl 4-hydroxyphenylacetateHCID 220568ethyl N-ethoxycarbonyliminocarbamateHCID 6544479tert-Butyl (3R)-3-hydroxypyrrolidine-1-carboxylate

Product 1

HCID 10937002HCID 10937002, compound

Reagents, catalysts & solvents 2

HCID 8028TetrahydrofuranSolventHCID 8857Ethyl AcetateSolvent

Procedure

6.0 g (33.3 mmol) of ethyl 4-hydroxyphenylacetate, 6.25 g (33.3 mmol) of (3R)-1-(t-butoxycarbonyl)-3-hydroxypyrrolidine and 10.5 g (40 mmol) of triphenylphosphine were dissolved in 125 ml of tetrahydrofuran. 6.3 ml (40 mmol) of diethyl azodicarboxylate was added to the solution at room temperature, and they were stirred for 42 hours. After the same isolation process as that of step 1 in Example 1 with ethyl acetate as the extractant, the crude product was obtained. The crude product was purified by the silica gel column chromatography to obtain the title compound.

Workup

  1. customThe crude product was purified by the silica gel column chromatography

Sources & evidence

ORD record
ord-0253b5bef07b45ada942001e7b098fc8
Source dataset
uspto-grants-2008_07
Patent number
US07396844B1

Reaction notes

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