Triethylamine → 6-(4-methoxybenzyl)-9-vinylpyrido[3,2-e][1,2,4]triazolo[1,5-c]pyrimidin-5(6H)-one

HRID 707478

反応式

HRID 707478 の反応式
Br[C:2]1[CH:11]=[N:10][C:9]2[N:8]([CH2:12][C:13]3[CH:18]=[CH:17][C:16]([O:19][CH3:20])=[CH:15][CH:14]=3)[C:7](=[O:21])[N:6]3[N:22]=[CH:23][N:24]=[C:5]3[C:4]=2[CH:3]=1.[B-](F)(F)(F)[CH:26]=[CH2:27].[K+].C(N(CC)CC)C>C(O)CCC>[CH3:20][O:19][C:16]1[CH:17]=[CH:18][C:13]([CH2:12][N:8]2[C:9]3[N:10]=[CH:11][C:2]([CH:26]=[CH2:27])=[CH:3][C:4]=3[C:5]3=[N:24][CH:23]=[N:22][N:6]3[C:7]2=[O:21])=[CH:14][CH:15]=1

参加物

5

反応物 3

HCID 8471TriethylamineHCID 23679353Potassium vinyltrifluoroborateHCID 867053859-bromo-6-(4-methoxybenzyl)pyrido[3,2-e][1,2,4]triazolo[1,5-c]pyrimidin-5(6H)-one

生成物 1

HCID 867053866-(4-methoxybenzyl)-9-vinylpyrido[3,2-e][1,2,4]triazolo[1,5-c]pyrimidin-5(6H)-one収率 63.1%

試薬・触媒・溶媒 1

HCID 2631-Butanol溶媒

反応条件

温度
100 °C

実験手順

9-Bromo-6-(4-methoxybenzyl)pyrido[3,2-e][1,2,4]triazolo[1,5-c]pyrimidin-5(6H)-one (2.00 g, 5.18 mmol), potassium trifluoro(vinyl)borate (1.51 g, 11.3 mmol), butan-1-ol (20 ml), triethylamine (1.05 ml, 7.53 mmol) and [1,1′-bis(diphenylphosphino)ferrocene]dichloropalladium(II)-dichloromethane complex (0.31 g, 0.38 mmol) were combined and heated at 100° C. for 20 hours. The mixture was cooled, concentrated under vacuum and taken up in dichloromethane (120 mL). It was washed with water (50 mL) and brine (50 mL), dried (MgSO4) and concentrated under vacuum. The residue was triturated with ethyl acetate (15 mL) for 20 hours, filtered, washed with cold ethyl acetate and suction dried to afford 1.09 g (63%) of the title compound as a yellow powder. 1H NMR (400 MHz, CDCl3) δ 3.76 (s, 3H), 5.52 (d, J=10.92 Hz, 1H), 5.75 (s, 2H), 5.98 (d, J=17.57 Hz, 1H), 6.75-6.88 (m, 3H), 7.60 (d, J=8.66 Hz, 2H), 8.36 (s, 1H), 8.66 (d, J=2.13 Hz, 1H), 8.79 (d, J=2.26 Hz, 1H). LCMS (MH+, 334.1).

後処理

  1. temperatureThe mixture was cooled
  2. concentrationconcentrated under vacuum
  3. washIt was washed with water (50 mL) and brine (50 mL)
  4. dry with materialdried (MgSO4)
  5. concentrationconcentrated under vacuum
  6. customThe residue was triturated with ethyl acetate (15 mL) for 20 hours
  7. filtrationfiltered
  8. washwashed with cold ethyl acetate and suction
  9. customdried

出典と根拠

ORDレコード
ord-0fe2653e68514f9aa15178f82b529982
出典データセット
uspto-grants-2015_11
特許番号
US09175010B2

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