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ChemicalBook CAS DataBase List 3-Cyclopropylbenzoic acid
1129-06-2

3-Cyclopropylbenzoic acid synthesis

7synthesis methods
-

Yield:1129-06-2 76%

Reaction Conditions:

Stage #1:methyl 3-cyclopropylbenzoate with methanol;lithium hydroxide;water for 3 h;
Stage #2: with hydrogenchloride in methanol;water; pH=~ 3

Steps:

32
To a solution of methyl-3-cyclopropylbenzoate (0.275 g, 1.56 mmol) in MeOH (10 ml) and H2O (1 ml) was added LiOH-H2O (0.131 g, 3.00 mmol). After 3 hours the pH was adjusted to ~3 by the addition of 3N HCl, and the aqueous phase extracted with EtOAc (3 X 25 ml). The combined organic extract was washed with brine (25 mL), dried (MgSO4), and concentrated in vacuo to yield 0.192 g (76 %) white solid; m/z:l61.

References:

ASTRAZENECA AB;ASTRAZENECA UK LIMITED WO2007/71955, 2007, A1 Location in patent:Page/Page column 55-56

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