Method for producing aminoalcohol derivative having biphenyl...

C - Chemistry – Metallurgy – 07 – C

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C07C 67/313 (2006.01) C07C 65/24 (2006.01) C07C 69/94 (2006.01) C07C 213/02 (2006.01) C07C 217/22 (2006.01) C07C 255/54 (2006.01) C07D 303/22 (2006.01) C07B 53/00 (2006.01)

Patent

CA 2608451

Disclosed is a method for commercially producing an aminoalcohol derivative (I) having a biphenyl group. Also disclosed are a biphenyloxyacetaldehyde derivative used therefor, a method for producing such a biphenyloxyacetaldehyde derivative, and an intermediate compound used for such a method for producing a biphenyloxyacetaldehyde derivative. Specifically disclosed is a production method comprising a step for forming a 3-substituted biphenylcarboxylic acid derivative represented by the general formula (4) below by reacting a 3-fluorobiphenylcarboxylic acid derivative prepared from a 3-fluorobiphenylcarbonitrile derivative, which is obtained by reacting a 4- halophenol derivative and a 2-fluorobenzonitrile derivative substituted with a leaving group at position 4, with an organic metal reagent.

L~invention décrit un procédé de production à l~échelle commerciale d~un dérivé aminoalcool (I) possédant un groupe diphényle. L~invention décrit également un dérivé biphényloxyacétaldéhyde utilisé à cette fin, un procédé de production d~un tel dérivé biphényloxyacétaldéhyde, et un composé intermédiaire utilisé pour un tel procédé de production d~un dérivé biphényloxyacétaldéhyde. L~invention décrit plus spécifiquement un procédé de production comprenant une étape consistant à former un dérivé d~acide biphénylcarboxylique substitué en position 3 représenté par la formule générale (4) ci-dessous obtenu en faisant réagir un dérivé acide 3-fluorobiphénylcarboxylique préparé à partir d'un dérivé 3-fluorobiphénylcarbonitrile, qui est obtenu en faisant réagir un dérivé 4-halogénophénol et un dérivé 2-fluorobenzonitrile substitué par un groupe partant en position 4, avec un réactif organométallique.

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