Chlorosuccinimide → 7-amino-9a-butyl-4,8-dichloro-6-fluoro-1,2,9,9a-tetrahydro-3H-fluoren-3-one

HRID 1372507노트

반응식

HRID 1372507 반응식
[NH2:1][C:2]1[C:14]([Cl:15])=[C:13]2[C:5]([C:6]3[C:11]([CH2:16][CH2:17][CH2:18][CH3:19])([CH2:12]2)[CH2:10][CH2:9][C:8](=[O:20])[CH:7]=3)=[CH:4][C:3]=1[F:21].[Cl:22]N1C(=O)CCC1=O>CN(C)C=O>[NH2:1][C:2]1[C:14]([Cl:15])=[C:13]2[C:5]([C:6]3[C:11]([CH2:16][CH2:17][CH2:18][CH3:19])([CH2:12]2)[CH2:10][CH2:9][C:8](=[O:20])[C:7]=3[Cl:22])=[CH:4][C:3]=1[F:21]

참가 물질

4

반응물 2

HCID 31398ChlorosuccinimideHCID 210720137-amino-9a-butyl-8-chloro-6-fluoro-1,2,9,9a-tetrahydro-3H-fluoren-3-one

생성물 1

HCID 102910817-amino-9a-butyl-4,8-dichloro-6-fluoro-1,2,9,9a-tetrahydro-3H-fluoren-3-one수율 80.1%

시약·촉매·용매 1

HCID 6228Dimethylformamide용매

실험 절차

A solution of 7-amino-9a-butyl-8-chloro-6-fluoro-1,2,9,9a-tetrahydro-3H-fluoren-3-one (0.054 g, 0.175 mmol) in anhydrous N,N-dimethylformamide (0.35 mL) was cooled in an ice bath, placed under a nitrogen atmosphere, and treated with N-chlorosuccinimide (0.024 g, 0.18 mmol). The mixture was stirred at room temperature for 18.5 hours and then heated in an oil bath at 35° C. for 3 hours. The reaction mixture was partitioned between EtOAc and water, and the organic phase was dried over MgSO4, filtered, and evaporated under vacuum. The residue was purified by preparative HPLC on a YMC-Pak ODS column (2×10 cm), eluting with 0.1% TFA in 10–100% MeCN/H2O (15 min gradient) at a 20 mL/min flow rate. The product-containing fractions (UV detection at 350 nm) were diluted with EtOAc, washed with 5% NaHCO3, water, and brine, dried over MgSO4, filtered, and evaporated under vacuum. The residual film was triturated with hexanes and the solid residue was dried under a N2 stream to afford 7-amino-9a-butyl-4,8-dichloro-6-fluoro-1,2,9,9a-tetrahydro-3H-fluoren-3-one (48 mg, 80%).

후처리

  1. temperatureheated in an oil bath at 35° C. for 3 hours
  2. customThe reaction mixture was partitioned between EtOAc and water
  3. dry with materialthe organic phase was dried over MgSO4
  4. filtrationfiltered
  5. customevaporated under vacuum
  6. customThe residue was purified by preparative HPLC on a YMC-Pak ODS column (2×10 cm)
  7. washeluting with 0.1% TFA in 10–100% MeCN/H2O (15 min gradient) at a 20 mL/min flow rate
  8. additionThe product-containing fractions (UV detection at 350 nm) were diluted with EtOAc
  9. washwashed with 5% NaHCO3, water, and brine
  10. dry with materialdried over MgSO4
  11. filtrationfiltered
  12. customevaporated under vacuum
  13. customThe residual film was triturated with hexanes
  14. customthe solid residue was dried under a N2 stream

출처 및 근거

ORD 기록
ord-3d2979609bf74b66bc8dd610f5fd9a5e
출처 데이터셋
uspto-grants-2007_01
특허 번호
US07157604B2

반응 노트

불러오는 중…