Sodium borohydride → ethyl 6-(aminomethyl)-1-benzyl-5-fluoro-2,3-dihydro-1H-inden-2-ylcarbamate

HRID 82898

反応式

HRID 82898 の反応式
[CH2:1]([CH:8]1[C:16]2[C:11](=[CH:12][C:13]([F:19])=[C:14]([C:17]#[N:18])[CH:15]=2)[CH2:10][CH:9]1[NH:20][C:21](=[O:25])[O:22][CH2:23][CH3:24])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.[BH4-].[Na+].[H][H]>CO.O.O.O.O.O.O.[Co](Cl)Cl>[NH2:18][CH2:17][C:14]1[CH:15]=[C:16]2[C:11]([CH2:10][CH:9]([NH:20][C:21](=[O:25])[O:22][CH2:23][CH3:24])[CH:8]2[CH2:1][C:2]2[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=2)=[CH:12][C:13]=1[F:19]

参加物

6

実験手順

To a solution of ethyl 1-benzyl-6-cyano-5-fluoro-2,3-dihydro-1H-inden-2-ylcarbamate (182 mg, 0.538 mmol) in methanol (5 ml) containing cobalt(II) chloride hexahydrate (256 mg, 1.076 mmol) was added sodium borohydride (203 mg, 5.38 mmol) in small portions with caution to control the evolution of hydrogen and the exothermic reaction (approximately 1 h). The reaction mixture was stirred at room temperature for 10 min and carefully quenched by addition of 12N hydrochloric acid until the black precipitate was dissolved. The reaction mixture was carefully made alkaline with concentrated ammonia and extracted with ethyl acetate, dried, filtered and evaporated to leave the crude product ethyl 6-(aminomethyl)-1-benzyl-5-fluoro-2,3-dihydro-1H-inden-2-ylcarbamate a pale brown oil. m=184 mg (quant.)

後処理

  1. customthe exothermic reaction (approximately 1 h)
  2. customcarefully quenched by addition of 12N hydrochloric acid until the black precipitate
  3. dissolutionwas dissolved
  4. extractionextracted with ethyl acetate
  5. customdried
  6. filtrationfiltered
  7. customevaporated

出典と根拠

ORDレコード
ord-535d4b8c466749d39d03aee7f799d264
出典データセット
uspto-grants-2014_09
特許番号
US08846743B2

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