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Triphenylphosphine → tert-Butyl (2S)-2-{[3',5-difluoro-4'-(phenylsulfonyl)biphenyl-2-yl]oxy}propanoate

HRID 1677865
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HRID 1677865 반응식
N(C(OC(C)C)=O)=NC(OC(C)C)=O.[F:15][C:16]1[CH:17]=[C:18]([C:31]2[C:32]([OH:38])=[CH:33][CH:34]=[C:35]([F:37])[CH:36]=2)[CH:19]=[CH:20][C:21]=1[S:22]([C:25]1[CH:30]=[CH:29][CH:28]=[CH:27][CH:26]=1)(=[O:24])=[O:23].[C:39]([O:44][C:45]([CH3:48])([CH3:47])[CH3:46])(=[O:43])[C@@H:40]([CH3:42])O.C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1>O1CCCC1>[F:15][C:16]1[CH:17]=[C:18]([C:31]2[CH:36]=[C:35]([F:37])[CH:34]=[CH:33][C:32]=2[O:38][C@@H:40]([CH3:42])[C:39]([O:44][C:45]([CH3:48])([CH3:47])[CH3:46])=[O:43])[CH:19]=[CH:20][C:21]=1[S:22]([C:25]1[CH:26]=[CH:27][CH:28]=[CH:29][CH:30]=1)(=[O:24])=[O:23]
참가 물질실험 절차후처리출처 및 근거반응 노트

참가 물질

6

반응물 4

HCID 11776TriphenylphosphineHCID 75555Diisopropyl diazene-1,2-dicarboxylateHCID 10953655tert-butyl (2R)-2-hydroxypropanoateHCID 672389023',5-Difluoro-4'-(phenylsulfonyl)biphenyl-2-ol

생성물 1

HCID 86627029tert-Butyl (2S)-2-{[3',5-difluoro-4'-(phenylsulfonyl)biphenyl-2-yl]oxy}propanoate

시약·촉매·용매 1

HCID 8028
Tetrahydrofuran
용매

실험 절차

Diisopropyl azodicarboxylate (0.19 ml) was added to a solution of the product of example 2 part (iii) (250 mg), tert-butyl (R)-(+)-lactate (141 mg) and triphenylphosphine (252 mg) in tetrahydrofuran (10 ml) at 0° C. After 20 minutes the ice bath was removed and the reaction stirred at room temperature overnight. The reaction mixture was then adsorbed onto silica and purified using flash column chromatography (eluent 10% ethylacetate/hexane) to give the subtitle compound as an oil, yield 140 mg.

후처리

  1. customAfter 20 minutes the ice bath was removed
  2. custompurified

출처 및 근거

ORD 기록
ord-57d739dcffb348b3b74fe5eb15a496e8
출처 데이터셋
uspto-grants-2011_08
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US08008350B2

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