Hydrochloric Acid → 5,6-Bis(acetoxy)-1-aminomethyl-3-phenyl-3,4-dihydronaphthalene hydrochloride

HRID 54126ノート

反応式

HRID 54126 の反応式
[ClH:1].[NH2:2][CH2:3][C:4]1[C:13]2[C:8](=[C:9]([OH:15])[C:10]([OH:14])=[CH:11][CH:12]=2)[CH2:7][CH:6]([C:16]2[CH:21]=[CH:20][CH:19]=[CH:18][CH:17]=2)[CH:5]=1.Cl.C([O:25][CH2:26][CH3:27])C.[C:28](OC(=O)C)(=[O:30])[CH3:29]>>[ClH:1].[C:28]([O:15][C:9]1[C:10]([O:14][C:26](=[O:25])[CH3:27])=[CH:11][CH:12]=[C:13]2[C:8]=1[CH2:7][CH:6]([C:16]1[CH:17]=[CH:18][CH:19]=[CH:20][CH:21]=1)[CH:5]=[C:4]2[CH2:3][NH2:2])(=[O:30])[CH3:29]

参加物

5

反応物 4

HCID 313Hydrochloric AcidHCID 3283Diethyl EtherHCID 7918Acetic AnhydrideHCID 19961108HCID 19961108、化合物

生成物 1

HCID 199610845,6-Bis(acetoxy)-1-aminomethyl-3-phenyl-3,4-dihydronaphthalene hydrochloride収率 29%

実験手順

A suspension of 7.6 g (25 mmol) of 1-aminomethyl-5,6-dihydroxy-3-phenyl-3,4-dihydronaphthalene hydrochloride (Example 2B) in 400 mL of acetic anhydride saturated with anhydrous hydrogen chloride was stirred at ambient temperature for 48 h. Approximately 2L of diethyl ether was added and a solid was collected by filtration and washed with diethyl ether. Crystallization of the crude material (6.7 g) was achieved by dissolving the powder in 400 mL of hot ethanol, adding 100 mL of water, filtering the solution hot and allowing it to cool. The white crystals which formed were filtered and dried to give 2.8 g (29% yield) of 5,6-bis(acetoxy)-1-aminomethyl-3-phenyl-3,4-dihydronaphthalene hydrochloride, m.p. 207°-208° C. 1H NMR (d6 -DMSO) δ: 2.28 (s, 6H), 2.62 (dd, 1H), 2.95 (dd, 1H), 3.7-3.8 (m, 1H), 3.97 (s, 2H), 6.25 (d, 1H), 7.19 (d, 1H), 7.2-7.4 (m, 6H), 8.41 (br s, 3H).

後処理

  1. filtrationa solid was collected by filtration
  2. washwashed with diethyl ether
  3. customCrystallization of the crude material (6.7 g)
  4. dissolutionby dissolving the powder in 400 mL of hot ethanol
  5. additionadding 100 mL of water
  6. filtrationfiltering the solution hot
  7. temperatureto cool
  8. customThe white crystals which formed
  9. filtrationwere filtered
  10. customdried

出典と根拠

ORDレコード
ord-ef15df8ead284497a5565d7dc1ccd858
出典データセット
uspto-grants-1997_04
特許番号
US05621133

反応ノート

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