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Toluene → 1-{(2-Ethoxycarbonylvinyl)-[4-(4-fluorophenoxy) benzenesulfonyl]-amino}cyclopentanecarboxylic Acid Benzyl Ester

HRID 1953209
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HRID 1953209 반응식
[CH2:1]([O:8][C:9]([C:11]1([NH:16][S:17]([C:20]2[CH:25]=[CH:24][C:23]([O:26][C:27]3[CH:32]=[CH:31][C:30]([F:33])=[CH:29][CH:28]=3)=[CH:22][CH:21]=2)(=[O:19])=[O:18])[CH2:15][CH2:14][CH2:13][CH2:12]1)=[O:10])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.[C:34]([O:38][CH2:39][CH3:40])(=[O:37])[C:35]#[CH:36].[F-].C([N+](CCCC)(CCCC)CCCC)CCC.C1(C)C=CC=CC=1>O1CCCC1>[CH2:1]([O:8][C:9]([C:11]1([N:16]([CH:36]=[CH:35][C:34]([O:38][CH2:39][CH3:40])=[O:37])[S:17]([C:20]2[CH:25]=[CH:24][C:23]([O:26][C:27]3[CH:32]=[CH:31][C:30]([F:33])=[CH:29][CH:28]=3)=[CH:22][CH:21]=2)(=[O:19])=[O:18])[CH2:15][CH2:14][CH2:13][CH2:12]1)=[O:10])[C:2]1[CH:3]=[CH:4][CH:5]=[CH:6][CH:7]=1
참가 물질실험 절차후처리출처 및 근거반응 노트

참가 물질

6

반응물 4

HCID 1140TolueneHCID 12182Ethyl propiolateHCID 2724141Tetrabutylammonium FluorideHCID 110051711-[4-(4-Fluorophenoxy)benzenesulfonylamino]-cyclopentanecarboxylic acid benzyl ester

생성물 1

HCID 543914121-{(2-Ethoxycarbonylvinyl)-[4-(4-fluorophenoxy) benzenesulfonyl]-amino}cyclopentanecarboxylic Acid Benzyl Ester

시약·촉매·용매 1

HCID 8028Tetrahydrofuran용매3회

실험 절차

A solution of 25.0 g (53.2 mmol) of 1-[4-(4-fluorophenoxy)benzenesulfonylamino]-cyclopentanecarboxylic acid benzyl ester and 10.8 mL (106 mmol, 2 equivalents) of ethyl propiolate in 200 mL of dry tetrahydrofuran at 1° C. was treated with 53.2 mL (53.2 mmol, 1 equivalent) of a solution of tetrabutylammonium fluoride in tetrahydrofuran (1M) over 45 minutes. The resulting solution was allowed to warm slowly to ambient temperature and stirred overnight. The tetrahydrofuran was displaced with toluene at reduced pressure, and the toluene solution was washed with water and brine, diluted to 600 mL with toluene, stirred with 90 g of silica gel for three hours, filtered, and concentrated to 25.14 g (83%) of 1-{(2-ethoxycarbonylvinyl)-[4-(4-fluorophenoxy)benzenesulfonyl]amino}-cyclopentanecarboxylic acid benzyl ester as an orange oil. 1H NMR (CDCl3) indicated a 1.5:1 trans/cis ratio.

후처리

  1. washthe toluene solution was washed with water and brine
  2. additiondiluted to 600 mL with toluene
  3. stirringstirred with 90 g of silica gel for three hours
  4. filtrationfiltered
  5. concentrationconcentrated to 25.14 g (83%) of 1-{(2-ethoxycarbonylvinyl)-[4-(4-fluorophenoxy)benzenesulfonyl]amino}-cyclopentanecarboxylic acid benzyl ester as an orange oil

출처 및 근거

ORD 기록
ord-a1815be112a74f099dff304c45126ead
출처 데이터셋
uspto-grants-2000_09
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US06114568

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