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Ethyldiphenylphosphine → 2-acetamido-N-tert-butyl-2-(3-(4-chlorobenzyl)-3-formamidocyclobutyl)-6-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)hexanamide

HRID 1778600
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Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 1778600
C1(P(CC)C2C=CC=CC=2)C=CC=CC=1.[CH3:16][C:17]1([CH3:24])[C:21]([CH3:23])([CH3:22])[O:20][BH:19][O:18]1.[C:25]([NH:28][C:29]([CH:41]1[CH2:44][C:43]([CH2:48][C:49]2[CH:54]=[CH:53][C:52]([Cl:55])=[CH:51][CH:50]=2)([NH:45][CH:46]=[O:47])[CH2:42]1)([CH2:37][CH2:38][CH:39]=[CH2:40])[C:30]([NH:32][C:33]([CH3:36])([CH3:35])[CH3:34])=[O:31])(=[O:27])[CH3:26]>ClCCl>[C:25]([NH:28][C:29]([CH:41]1[CH2:42][C:43]([CH2:48][C:49]2[CH:54]=[CH:53][C:52]([Cl:55])=[CH:51][CH:50]=2)([NH:45][CH:46]=[O:47])[CH2:44]1)([CH2:37][CH2:38][CH2:39][CH2:40][B:19]1[O:20][C:21]([CH3:23])([CH3:22])[C:17]([CH3:24])([CH3:16])[O:18]1)[C:30]([NH:32][C:33]([CH3:36])([CH3:34])[CH3:35])=[O:31])(=[O:27])[CH3:26]
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Komponenten

5

Edukt 3

HCID 69082EthyldiphenylphosphineHCID 27347684,4,5,5-Tetramethyl[1,3,2]dioxaborolaneHCID 895143752-acetamido-N-tert-butyl-2-(3-(4-chlorobenzyl)-3-formamidocyclobutyl)hex-5-enamide

Produkt 1

HCID 895143012-acetamido-N-tert-butyl-2-(3-(4-chlorobenzyl)-3-formamidocyclobutyl)-6-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)hexanamideAusbeute 99 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 6344DichloromethaneLösungsmittel2×

Versuchsvorschrift

While under argon, bis(1,5-dicyclooctadiene)diiridium(I)dichloride (15 mg, 0.022 mmol) and diphenylphosphinoethan (18 mg, 0.044 mmol) in dichloromethane (3 mL) was cooled to 0° C. and treated with 4,4,5,5-tetramethyl-1,3,2-dioxaborolane (0.430 mL, 2.95 mmol). After 30 min, a solution of 2-acetamido-N-tert-butyl-2-(3-(4-chlorobenzyl)-3-formamidocyclobutyl)hex-5-enamide (330 mg, 0.738 mmol) in dichloromethane (10 mL) was added and the cooling bath was removed. After 16 h, the solution was diluted with dichloromethane (20 mL) and washed with water and saturated aqueous sodium chloride. The organic layer was dried over MgSO4, filtered and concentrated to give the crude product (420 mg, 99%), which was used in the next step without further purification. ESI MS found for C30H47BClN3O5 m/z [576.8 (M+1), 574.7 (M−1)].

Aufarbeitung

  1. customthe cooling bath was removed
  2. waitAfter 16 h
  3. additionthe solution was diluted with dichloromethane (20 mL)
  4. washwashed with water and saturated aqueous sodium chloride
  5. dry with materialThe organic layer was dried over MgSO4
  6. filtrationfiltered
  7. concentrationconcentrated

Quellen und Nachweise

ORD-Eintrag
ord-dc199895addc4a5eb65b393eeaef638c
Quelldatensatz
uspto-grants-2016_02
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US09266908B2

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