3-Isoxazolamine → 1-Isoxazol-3-yl-4-(2,2,4,6,7-pentamethyl-2,3-dihydro-1-benzofuran-5-yl)piperazine

HRID 1850502Notes

Reaction equation

Cl[CH2:2][CH2:3][N:4]([CH2:19][CH2:20]Cl)[C:5]1[C:6]([CH3:18])=[C:7]([CH3:17])[C:8]2[O:12][C:11]([CH3:14])([CH3:13])[CH2:10][C:9]=2[C:15]=1[CH3:16].[O:22]1[CH:26]=[CH:25][C:24]([NH2:27])=[N:23]1>>[O:22]1[CH:26]=[CH:25][C:24]([N:27]2[CH2:20][CH2:19][N:4]([C:5]3[C:6]([CH3:18])=[C:7]([CH3:17])[C:8]4[O:12][C:11]([CH3:14])([CH3:13])[CH2:10][C:9]=4[C:15]=3[CH3:16])[CH2:3][CH2:2]2)=[N:23]1

Participants

Reactant 2

HCID 18102163-Isoxazolamine

HCID 66760837N,N-bis(2-chloroethyl)-2,2,4,6,7-pentamethyl-2,3-dihydro-1-benzofuran-5-amine

Product 1

HCID 594851331-Isoxazol-3-yl-4-(2,2,4,6,7-pentamethyl-2,3-dihydro-1-benzofuran-5-yl)piperazineYield 9%

Procedure

By using N,N-bis(2-chloroethyl)-2,2,4,6,7-pentamethyl-2,3-dihydro-1-benzofuran-5-amine (165 mg, 0.50 mmol) synthesized in Reference Example 146 and isoxazol-3-amine (0.044 mL, 0.60 mmol), the reaction was carried out in the same manner as Example 117 to obtain 15 mg of the title compound as a colorless solid (yield 9%).

Sources & evidence

ORD record: ord-71a570caf5df47e0b93ba607154922aa
Source dataset: uspto-grants-2015_02
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08957069B2

Reaction notes

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