Preparation of aryl-substituted butenolides using mucohalic acids
Methods and materials for preparing 3-aryl-2-buten-4-olides and 2,3-bisaryl-2-buten-4-olides are disclosed. The methods include reacting a mucohalic acid with a reducing agent to give a 2,3-dihalo-2-buten-4-olide, which undergoes at least one Pd catalyzed cross-coupling reaction with an arylboronic acid.
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Page/Page column 9
(2008/06/13)
Process for preparing highly functionalized gamma-butyrolactams and gamma-amino acids
The invention relates to a process for preparing highly functionalized γ-butyrolactams and γ-amino acids by reductive amination of mucohalic acid or its derivatives, and discloses a process for preparing pregabalin, a GABA analog with desirable medicinal activity.
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Page 14
(2010/02/03)
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