Diisopropylethylamine → 1-{4-[3-(3,4-Dimethoxyphenyl)4,5-dihydroisoxazol-5-yl]butyl}-4-(2-methoxyphenyl)piperazine

HRID 1838297Notes

Reaction equation

HRID 1838297 reaction equation
[CH3:1][O:2][C:3]1[CH:4]=[C:5]([C:11]2[CH2:15][CH:14]([CH2:16][CH2:17][CH2:18][CH:19]=O)[O:13][N:12]=2)[CH:6]=[CH:7][C:8]=1[O:9][CH3:10].Cl.[CH3:22][O:23][C:24]1[CH:29]=[CH:28][CH:27]=[CH:26][C:25]=1[N:30]1[CH2:35][CH2:34][NH:33][CH2:32][CH2:31]1.[BH-](OC(C)=O)(OC(C)=O)OC(C)=O.[Na+].C(N(C(C)C)CC)(C)C>C(Cl)Cl>[CH3:1][O:2][C:3]1[CH:4]=[C:5]([C:11]2[CH2:15][CH:14]([CH2:16][CH2:17][CH2:18][CH2:19][N:33]3[CH2:32][CH2:31][N:30]([C:25]4[CH:26]=[CH:27][CH:28]=[CH:29][C:24]=4[O:23][CH3:22])[CH2:35][CH2:34]3)[O:13][N:12]=2)[CH:6]=[CH:7][C:8]=1[O:9][CH3:10]

Participants

6

Reactant 4

HCID 81531DiisopropylethylamineHCID 5049666Sodium triacetoxyborohydrideHCID 9899402N-(2-Methoxyphenyl)piperazine hydrochlorideHCID 18753384HCID 18753384, compound

Product 1

HCID 101389971-{4-[3-(3,4-Dimethoxyphenyl)4,5-dihydroisoxazol-5-yl]butyl}-4-(2-methoxyphenyl)piperazineYield 67.2%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

4-[3-(3,4-Dimethoxyphenyl)-4,5-dihydroisoxazol-5-yl]butanal (26.7 mg, 0.096 mmol), 1-(2-methoxyphenyl)piperazine hydrochloride (20.0 mg, 0.087 mmol), molecular sieve (5 beads), NaBH(OAc)3 (55.6 mg, 0.262 mmol) and diisopropylethylamine (26.9 L, 0.087 mmol) were reacted in 3 mL of methylene chloride for about 12 hr. With the following processes the same as in Example 1, 26.5 mg (62.5%) of the target compound was obtained.

Sources & evidence

ORD record
ord-b67e4ad98ab64bd0a82aa8bd9848c708
Source dataset
uspto-grants-2004_01
Patent number
US06673800B2

Reaction notes

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