Sodium borohydride → (6Z,9Z,27Z,30Z)-19-hydroxyhexatriaconta-6,9,27,30-tetraen-18-yl 3-(dimethylamino)propanoate

HRID 537829ノート

反応式

HRID 537829 の反応式
[CH3:1][N:2]([CH3:45])[CH2:3][CH2:4][C:5]([O:7][CH:8]([C:26](=[O:44])[CH2:27][CH2:28][CH2:29][CH2:30][CH2:31][CH2:32][CH2:33]/[CH:34]=[CH:35]\[CH2:36]/[CH:37]=[CH:38]\[CH2:39][CH2:40][CH2:41][CH2:42][CH3:43])[CH2:9][CH2:10][CH2:11][CH2:12][CH2:13][CH2:14][CH2:15]/[CH:16]=[CH:17]\[CH2:18]/[CH:19]=[CH:20]\[CH2:21][CH2:22][CH2:23][CH2:24][CH3:25])=[O:6].[BH4-].[Na+]>CO>[CH3:45][N:2]([CH3:1])[CH2:3][CH2:4][C:5]([O:7][CH:8]([CH:26]([OH:44])[CH2:27][CH2:28][CH2:29][CH2:30][CH2:31][CH2:32][CH2:33]/[CH:34]=[CH:35]\[CH2:36]/[CH:37]=[CH:38]\[CH2:39][CH2:40][CH2:41][CH2:42][CH3:43])[CH2:9][CH2:10][CH2:11][CH2:12][CH2:13][CH2:14][CH2:15]/[CH:16]=[CH:17]\[CH2:18]/[CH:19]=[CH:20]\[CH2:21][CH2:22][CH2:23][CH2:24][CH3:25])=[O:6]

参加物

4

反応物 2

HCID 4311764Sodium borohydrideHCID 86684837(6Z,9Z,27Z,30Z)-19-oxohexatriaconta-6,9,27,30-tetraen-18-yl 3-(dimethylamino)propanoate

生成物 1

HCID 57500209(6Z,9Z,27Z,30Z)-19-hydroxyhexatriaconta-6,9,27,30-tetraen-18-yl 3-(dimethylamino)propanoate収率 91.7%

試薬・触媒・溶媒 1

HCID 887Methanol溶媒

実験手順

To a solution of (6Z,9Z,27Z,30Z)-19-oxohexatriaconta-6,9,27,30-tetraen-18-yl 3-(dimethylamino)propanoate (450 mg, 0.72 mmol) in anhydrous methanol (20 mL) was slowly added sodium borohydride (222 mg, 5.9 mmol). The solution was stirred for 16 hours at room temperature then quenched with water (20 mL). The solution was washed with dichloromethane (3×50 mL) and the combined extracts were dried on magnesium sulfate, filtered and concentrated in vacuo to dryness. The residue was purified by column chromatography (100% ethyl acetate) to afford the title compound as a colorless oil (416 mg, 91%). 1H NMR (400 MHz, CDCl3): δ 5.45-5.28 (m, 8H), 5.02-4.82 (m, 1H), 3.69-3.43 (m, 1H), 2.84-2.45 (m, 8H), 2.30 (s, 6H), 2.09-2.02 (m, 8H), 1.67-1.20 (m, 36H), 0.93-0.86 (m, 6H).

後処理

  1. customthen quenched with water (20 mL)
  2. washThe solution was washed with dichloromethane (3×50 mL)
  3. customthe combined extracts were dried on magnesium sulfate
  4. filtrationfiltered
  5. concentrationconcentrated in vacuo to dryness
  6. customThe residue was purified by column chromatography (100% ethyl acetate)

出典と根拠

ORDレコード
ord-ac661eacae8143a99ac4d737b9b4fca7
出典データセット
uspto-grants-2014_10
特許番号
US08865675B2

反応ノート

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