Trityl chloride → HCID 14999687, compound

HRID 270078Notes

Reaction equation

HRID 270078 reaction equation
[OH:1][C:2]1[CH:11]=[C:10]([OH:12])[CH:9]=[CH:8][C:3]=1[C:4]([O:6][CH3:7])=[O:5].C(N(CC)CC)C.[C:20](Cl)([C:33]1[CH:38]=[CH:37][CH:36]=[CH:35][CH:34]=1)([C:27]1[CH:32]=[CH:31][CH:30]=[CH:29][CH:28]=1)[C:21]1[CH:26]=[CH:25][CH:24]=[CH:23][CH:22]=1>CN(C)C=O.CN(C)C1C=CN=CC=1>[OH:1][C:2]1[CH:11]=[C:10]([O:12][C:20]([C:21]2[CH:26]=[CH:25][CH:24]=[CH:23][CH:22]=2)([C:33]2[CH:34]=[CH:35][CH:36]=[CH:37][CH:38]=2)[C:27]2[CH:28]=[CH:29][CH:30]=[CH:31][CH:32]=2)[CH:9]=[CH:8][C:3]=1[C:4]([O:6][CH3:7])=[O:5]

Participants

6

Reactant 3

HCID 6456Trityl chlorideHCID 8471Triethylamine2×HCID 16523Methyl 2,4-Dihydroxybenzoate

Product 1

HCID 14999687HCID 14999687, compoundYield 42.6%

Reagents, catalysts & solvents 2

HCID 142844-(Dimethylamino)pyridineCatalystHCID 6228DimethylformamideSolvent

Procedure

To a solution of methyl 2,4-dihydroxybenzoate (388 mg, 2.0 mmol) in dimethylformamide (5 mL) was added triethylamine, Et3N, (0.556 mL, 4.0 mmol) followed by trityl chloride (557.5 mg, 2.0 mmol) and 4-dimethylaminopyridine (DMAP) (20 mg). The reaction mixture was kept on stirring at room temperature overnight, poured into a mixture of ice-water, the white precipitate was collected by filtration. This precipitate was subjected to silica gel flash chromatography (0-5% ethyl acetate in petroleum ether) to give the subtitled compound (350 mg).

Workup

  1. filtrationthe white precipitate was collected by filtration

Sources & evidence

ORD record
ord-b8b1c3a3d7504b148487810b32f60608
Source dataset
uspto-grants-2008_11
Patent number
US07449475B2

Reaction notes

Loading…