Tetrabutylammonium Fluoride → 4-[4-(2,2-Dioxido-3,4-dihydropyrido[2,1-c][1,2,4]thiadiazin-9-yl)phenoxy]phenol

HRID 1748075ノート

反応式

HRID 1748075 の反応式
[Si]([O:8][C:9]1[CH:33]=[CH:32][C:12]([O:13][C:14]2[CH:19]=[CH:18][C:17]([C:20]3[C:25]4=[N:26][S:27](=[O:31])(=[O:30])[CH2:28][CH2:29][N:24]4[CH:23]=[CH:22][CH:21]=3)=[CH:16][CH:15]=2)=[CH:11][CH:10]=1)(C(C)(C)C)(C)C.[F-].C([N+](CCCC)(CCCC)CCCC)CCC>C1COCC1>[O:31]=[S:27]1(=[O:30])[CH2:28][CH2:29][N:24]2[CH:23]=[CH:22][CH:21]=[C:20]([C:17]3[CH:18]=[CH:19][C:14]([O:13][C:12]4[CH:32]=[CH:33][C:9]([OH:8])=[CH:10][CH:11]=4)=[CH:15][CH:16]=3)[C:25]2=[N:26]1

参加物

4

反応物 2

HCID 2724141Tetrabutylammonium FluorideHCID 667481279-[4-(4-{[Tert-butyl(dimethyl)silyl]oxy}phenoxy)phenyl]-3,4-dihydropyrido[2,1-c][1,2,4]thiadiazine 2,2-dioxide

生成物 1

HCID 668239904-[4-(2,2-Dioxido-3,4-dihydropyrido[2,1-c][1,2,4]thiadiazin-9-yl)phenoxy]phenol収率 35.4%

試薬・触媒・溶媒 1

HCID 8028Tetrahydrofuran溶媒

実験手順

A solution of 9-[4-(4-{[tert-butyl(dimethyl)silyl]oxy}phenoxy)phenyl]-3,4-dihydropyrido[2,1-c][1,2,4]thiadiazine 2,2-dioxide (1.82 g) in THF (dry) (55 mL) was added to tetrabutylammonium fluoride(1 M in THF) (6.79 mL) at room temperature. After stirring for 0.5 hr, the mixture was added with sat.NH4Cl aq. and silica gel, then concentrated in vacuo. The residue was purified by column chromatography (silica gel, eluted with EtOAc in hexane then MeOH in EtOAc), recrystallized from THF-IPE, then preparative HPLC (C18, eluent; H2O/MeCN with 0.1% TFA). The collected fraction was concentrated in vacuo. The residue was recrystallized from MeCN—H2O to give the title compound (492 mg) as a white solid.

後処理

  1. additionthe mixture was added
  2. concentrationNH4Cl aq. and silica gel, then concentrated in vacuo
  3. customThe residue was purified by column chromatography (silica gel
  4. washeluted with EtOAc in hexane
  5. customMeOH in EtOAc), recrystallized from THF-IPE
  6. concentrationThe collected fraction was concentrated in vacuo
  7. customThe residue was recrystallized from MeCN—H2O

出典と根拠

ORDレコード
ord-e29c1b7b4eb94ce4a1a543e107cc2cad
出典データセット
uspto-grants-2015_10
特許番号
US09150591B2

反応ノート

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