Benzyl mercaptan → 3-Methyl-5-[(phenylmethyl)thio]pyridine

HRID 869751ノート

反応式

HRID 869751 の反応式
Br[C:2]1[CH:3]=[N:4][CH:5]=[C:6]([CH3:8])[CH:7]=1.[C:9]1([CH2:15][SH:16])[CH:14]=[CH:13][CH:12]=[CH:11][CH:10]=1.C(N(CC)C(C)C)(C)C>C1(C)C=CC=CC=1.C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.[Pd].[Pd].C1(P(C2C=CC=CC=2)C2C3OC4C(=CC=CC=4P(C4C=CC=CC=4)C4C=CC=CC=4)C(C)(C)C=3C=CC=2)C=CC=CC=1>[CH2:15]([S:16][C:2]1[CH:3]=[N:4][CH:5]=[C:6]([CH3:8])[CH:7]=1)[C:9]1[CH:14]=[CH:13][CH:12]=[CH:11][CH:10]=1

参加物

7

反応物 3

HCID 7509Benzyl mercaptanHCID 81531DiisopropylethylamineHCID 8177133-Bromo-5-methylpyridine

生成物 1

HCID 583498343-Methyl-5-[(phenylmethyl)thio]pyridine収率 95.4%

試薬・触媒・溶媒 3

HCID 6360441,1'-(9,9-Dimethyl-9H-xanthene-4,5-diyl)bis(1,1-diphenylphosphine)触媒HCID 9811564Bis(dibenzylideneacetone)palladium触媒HCID 1140Toluene溶媒

反応条件

温度
80 °C

実験手順

To a solution of 3-bromo-5-methylpyridine (888 mg) in toluene (10 mL) were added phenylmethanethiol (705 mg), N,N-diisopropylethylamine (1.47 g), tris(dibenzylideneacetone)dipalladium(0)(189 mg) and 4,5-bis(diphenylphosphino)-9,9-dimethylxanthene (239 mg), and the mixture was stirred under an argon atmosphere at 80° C. for 1.5 hr. The reaction mixture was filtered through silica gel, and the filtrate was concentrated under reduced pressure. The residue was purified by silica gel column chromatography (eluent:hexane-ethyl acetate=19:1→17:3) to give the title compound as a yellow oil (yield 1.06 g, 95%).

後処理

  1. filtrationThe reaction mixture was filtered through silica gel
  2. concentrationthe filtrate was concentrated under reduced pressure
  3. customThe residue was purified by silica gel column chromatography (eluent:hexane-ethyl acetate=19:1→17:3)

出典と根拠

ORDレコード
ord-01be7e513fd24331a04a9123dd9eaf0a
出典データセット
uspto-grants-2015_03
特許番号
US08969387B2

反応ノート

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