Lithium Hydroxide → 2-[4-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl]cyclopropanecarboxylic acid

HRID 1294382Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 1294382
[CH3:1][C:2]1([CH3:23])[C:6]([CH3:8])([CH3:7])[O:5][B:4]([C:9]2[CH:14]=[CH:13][C:12]([CH:15]3[CH2:17][CH:16]3[C:18]([O:20]CC)=[O:19])=[CH:11][CH:10]=2)[O:3]1.[Li+].[OH-]>C1COCC1.O>[CH3:7][C:6]1([CH3:8])[C:2]([CH3:1])([CH3:23])[O:3][B:4]([C:9]2[CH:14]=[CH:13][C:12]([CH:15]3[CH2:17][CH:16]3[C:18]([OH:20])=[O:19])=[CH:11][CH:10]=2)[O:5]1

Komponenten

4

Edukt 2

HCID 3939Lithium HydroxideHCID 66579675Ethyl 2-[4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl]cyclopropanecarboxylate

Produkt 1

HCID 691581982-[4-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl]cyclopropanecarboxylic acid

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 21881883Oxolane--water (1/1)Lösungsmittel

Versuchsvorschrift

To a solution of ester from step 2 in THF-H2O (0.2M) was added LiOH (3 eq, 2M) and the mixture was stirred at it for 18 h. The organic solvent evaporated, aqueous was acidified with HCl 1N and the acid extracted with EtOAc (3×). The organic was washed with brine, dried and solvent evaporated to afford the title carboxylic acid.

Aufarbeitung

  1. customThe organic solvent evaporated
  2. extractionthe acid extracted with EtOAc (3×)
  3. washThe organic was washed with brine
  4. customdried
  5. customsolvent evaporated

Quellen und Nachweise

ORD-Eintrag
ord-f67bc72762f7413fa81ec34d9b29f082
Quelldatensatz
uspto-grants-2007_07
Patentnummer
US07238706B2

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