6-Bromo-2-(toluene-4-sulfonyl)-1,2,3,4-tetrahydro-isoquinoline → 6-((2S,3'S)-2-Methyl-[1,3']bipyrrolidinyl-1'-yl)-2-(toluene-4-sulfonyl)-1,2,3,4-tetrahydro-isoquinoline

HRID 540356ノート

反応式

HRID 540356 の反応式
Br[C:2]1[CH:3]=[C:4]2[C:9](=[CH:10][CH:11]=1)[CH2:8][N:7]([S:12]([C:15]1[CH:20]=[CH:19][C:18]([CH3:21])=[CH:17][CH:16]=1)(=[O:14])=[O:13])[CH2:6][CH2:5]2.CC([O-])(C)C.[Na+].[CH3:28][C@H:29]1[CH2:33][CH2:32][CH2:31][N:30]1[C@H:34]1[CH2:38][CH2:37][NH:36][CH2:35]1>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].C1C=CC(P(C2C(C3C(P(C4C=CC=CC=4)C4C=CC=CC=4)=CC=C4C=3C=CC=C4)=C3C(C=CC=C3)=CC=2)C2C=CC=CC=2)=CC=1>[CH3:28][C@H:29]1[CH2:33][CH2:32][CH2:31][N:30]1[C@H:34]1[CH2:38][CH2:37][N:36]([C:2]2[CH:3]=[C:4]3[C:9](=[CH:10][CH:11]=2)[CH2:8][N:7]([S:12]([C:15]2[CH:20]=[CH:19][C:18]([CH3:21])=[CH:17][CH:16]=2)(=[O:14])=[O:13])[CH2:6][CH2:5]3)[CH2:35]1

参加物

7

反応物 3

HCID 219758586-Bromo-2-(toluene-4-sulfonyl)-1,2,3,4-tetrahydro-isoquinolineHCID 23676156Sodium t-butoxideHCID 59401808(2S,3'S)-2-Methyl-[1,3]bipyrrolidinyl

生成物 1

HCID 682110156-((2S,3'S)-2-Methyl-[1,3']bipyrrolidinyl-1'-yl)-2-(toluene-4-sulfonyl)-1,2,3,4-tetrahydro-isoquinoline収率 78%

試薬・触媒・溶媒 3

HCID 634876Binap, (A+-)-触媒HCID 9811564Bis(dibenzylideneacetone)palladium触媒HCID 1140Toluene溶媒

反応条件

温度
85 °C

実験手順

6-Bromo-2-(toluene-4-sulfonyl)-1,2,3,4-tetrahydro-isoquinoline (4.32 g, 11.8 mmol, 1 eq), NaOt-Bu (1.64 g, 17.11 mmol, 1.45 eq), Pd2(dba)3 (110 mg, 0.12 mmol, 0.01 eq) and BINAP (221 mg, 0.354 mmol, 0.03 eq) were combined in a round-bottomed flask and purged with nitrogen. 30 mL of dry toluene was added and the solution became red slurry. To this was added a solution of (2S,3′S)-2-Methyl-[1,3′]bipyrrolidinyl (2 g, 13 mmol, 1.1 eq) in 30 mL of dry toluene. The reaction mixture was heated to 85° C. and stirred overnight. The reaction mixture was cooled to rt and quenched with 50 mL of water. This was transferred to a separatory funnel along with 100 mL of brine. The organics were extracted with ethyl acetate (2×100 mL), where they were combined, dried over Na2SO4, concentrated under vacuum and purified by column chromatography on silica gel (200 g column; 50 mL/min; 5% MeOH in CH2Cl2), which afforded 4.02 g (78%) of the title compound as an orange solid.

後処理

  1. custompurged with nitrogen
  2. addition30 mL of dry toluene was added
  3. temperatureThe reaction mixture was cooled to rt
  4. customquenched with 50 mL of water
  5. customThis was transferred to a separatory funnel along with 100 mL of brine
  6. extractionThe organics were extracted with ethyl acetate (2×100 mL), where they
  7. dry with materialdried over Na2SO4
  8. concentrationconcentrated under vacuum
  9. custompurified by column chromatography on silica gel (200 g column; 50 mL/min; 5% MeOH in CH2Cl2), which

出典と根拠

ORDレコード
ord-3eda1366b60b4c08a799a6d049b96ee4
出典データセット
uspto-grants-2014_10
特許番号
US08871788B2

反応ノート

読み込み中…