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Ethyl Acetate → Benzyl 3-(2-propionyloxy-5-(ethoxy(diethylphosphonomethyl)phosphinoyl)phenyl)-3-methylbutanoate

HRID 39278
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HRID 39278 반응식
[C:1](Cl)(=[O:4])[CH2:2][CH3:3].[OH:6][C:7]1[CH:12]=[CH:11][C:10]([P:13]([O:24][CH2:25][CH3:26])([CH2:15][P:16]([O:21][CH2:22][CH3:23])([O:18][CH2:19][CH3:20])=[O:17])=[O:14])=[CH:9][C:8]=1[C:27]([CH3:40])([CH3:39])[CH2:28][C:29]([O:31][CH2:32][C:33]1[CH:38]=[CH:37][CH:36]=[CH:35][CH:34]=1)=[O:30].C(OCC)(=O)C>CN(C1C=CN=CC=1)C.N1C=CC=CC=1>[C:1]([O:6][C:7]1[CH:12]=[CH:11][C:10]([P:13]([O:24][CH2:25][CH3:26])([CH2:15][P:16]([O:21][CH2:22][CH3:23])([O:18][CH2:19][CH3:20])=[O:17])=[O:14])=[CH:9][C:8]=1[C:27]([CH3:40])([CH3:39])[CH2:28][C:29]([O:31][CH2:32][C:33]1[CH:38]=[CH:37][CH:36]=[CH:35][CH:34]=1)=[O:30])(=[O:4])[CH2:2][CH3:3]
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참가 물질

6

반응물 3

HCID 8857Ethyl AcetateHCID 62324Propionyl chlorideHCID 25139361Benzyl 3-(2-hydroxy-5-(Ethoxy(diethylphosphonomethyl)phosphinoyl)phenyl)-3-methylbutanoate

생성물 1

HCID 86655577Benzyl 3-(2-propionyloxy-5-(ethoxy(diethylphosphonomethyl)phosphinoyl)phenyl)-3-methylbutanoate수율 66.2%

시약·촉매·용매 2

HCID 14284
4-(Dimethylamino)pyridine
촉매
HCID 1049Pyridine용매

실험 절차

Proprionyl chloride (190 μL, 2.17 mmol) was added drop-wise to a stirring solution of crude phenol 122 (880 mg, 1.67 mmol) and DMAP (2 mg, 0.016 mmol) in pyridine (5 mL). The reaction was continued for 3 hr at room temperature followed by the addition of ethyl acetate (100 mL). The organic layer was washed with cold aqueous HCl (0.5 N), H2O and saturated aqueous NaCl then dried over Na2SO4 and concentrated in vacuo. The crude product was purified by silica gel chromatography (0 to 20% methanol in ethyl acetate) using a Biotage Horizons™ system, resulting in 123 as a pale yellow liquid (644 mg, 66%): 1H NMR (400 MHz, CDCl3) δ 1.25 (t, J=7.0, 3H), 1.26 (t, J=7.5, 3H), 1.30 (t, J=7.0, 3H), 1.46 (s, 3H), 1.48 (s, 3H), 2.50-2.63 (m, 4H), 2.82 (AB q, J=14.4, 2H), 3.93-4.16 (m, 6H), 4.93 (s, 2H), 7.12-7.18 (m, 3H), 7.26-7.32 (m, 3H), 7.70 (ddd, J=1.8, 8.4, 11.6, 1H), 7.86 (dd, J=1.8, 13.4, 1H): 31P (162 MHz, CDCl3) δ 20.21 (d, J=9.7, 1 P), 34.03 (d, J=9.7, 1 P).

후처리

  1. washThe organic layer was washed with cold aqueous HCl (0.5 N), H2O and saturated aqueous NaCl
  2. dry with materialthen dried over Na2SO4
  3. concentrationconcentrated in vacuo
  4. customThe crude product was purified by silica gel chromatography (0 to 20% methanol in ethyl acetate)

출처 및 근거

ORD 기록
ord-59f6858b49044c839b8d0114e1657121
출처 데이터셋
uspto-grants-2013_09
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US08524691B2

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