Methylamine → HCID 59556067, compound

HRID 1025692Notes

Reaction equation

HRID 1025692 reaction equation
[OH:1][C:2]1([C:12]2[CH:20]=[CH:19][C:15]([C:16](O)=[O:17])=[CH:14][CH:13]=2)[CH2:11][CH2:10][C:5]2([O:9][CH2:8][CH2:7][O:6]2)[CH2:4][CH2:3]1.CN.[CH3:23][N:24]([P+](ON1N=NC2C=CC=CC1=2)(N(C)C)N(C)C)C.F[P-](F)(F)(F)(F)F.C(N(CC)CC)C>CN(C=O)C.C(OCC)(=O)C.CCCCCC>[OH:1][C:2]1([C:12]2[CH:20]=[CH:19][C:15]([C:16]([NH:24][CH3:23])=[O:17])=[CH:14][CH:13]=2)[CH2:11][CH2:10][C:5]2([O:9][CH2:8][CH2:7][O:6]2)[CH2:4][CH2:3]1

Participants

7

Reactant 4

HCID 6329MethylamineHCID 8471TriethylamineHCID 151348Benzotriazol-1-yloxy-tris(dimethylamino)phosphonium hexafluorophosphateHCID 15023906HCID 15023906, compound

Product 1

HCID 59556067HCID 59556067, compoundYield 70.4%

Reagents, catalysts & solvents 2

HCID 6228DimethylformamideSolventHCID 21226206Ethyl acetate hexaneSolvent

Procedure

4-(8-Hydroxy-1,4-dioxaspiro[4.5]dec-8-yl)benzoic acid (560 mg, 2 mmol), methylamine (1.2 mL, 2.0 M THF solution), BOP reagent (1.07 g, 2.4 mmol) and 0.8 mL (6 mmol) of triethylamine were dissolved in 15 mL of DMF at room temperature. The reaction mixture was stirred at r.t. overnight. Direct chromatography on silica gel (flash chromatography grade) with 50% ethyl acetate-hexane gave 410 mg (70%) of the desired product: 1H NMR (CDCl3) δ 7.76 (2 H, d, J=11.2 Hz), 7.56 (2 H, d, J=10.9 Hz), 5.01 (H, s), 3.90 (4 H, s), 3.37 (3 H, s), 2.80-2.75 (2 H, m), 2.60-2.45 (2 H, m), 1.95-1.90 (2 H, m), 1.63-1.52 (2 H, m); MS: 292 (M+1)+.

Sources & evidence

ORD record
ord-5971d11f60004489872bce31a4ccc64b
Source dataset
uspto-grants-2014_05
Patent number
US08729063B2

Reaction notes

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