US Patent 7560585 - Process for preparing (S)- alpha-cyano-3-phenoxybenzyl-(S)-2-(4-chlorophenyl)-isovalerate

Process for preparing (S)- alpha-cyano-3-phenoxybenzyl-(S)-2-(4-chlorophenyl)-isovalerate

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Document Number

US Patent 7560585

Issued Date

July 14, 2009

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Inventors

Reddy; Vaddu Venkata Narayana (Hyderabad,IN)

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Ishratullah; Khwaja (Hyderabad,IN)

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Raju; Penumatcha Venkata Krishnam (Hyderabad,IN)

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Babu; Tella Ramesh (Hyderabad,IN)

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Mahesh; Masna (Hyderabad,IN)

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Reddy; Chappeta Venkateswara (Hyderabad,IN)

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Abstract

The present invention relates to an environmentally benign process for the preparation of (S)-.alpha.-cyano-3-phenoxybenzyl-(S)-2-(4-chlorophenyl)isovalerate from its diastereomeric mixture (RS)-.alpha.-cyano-3-phenoxybenzyl-(S)-2-(4-chlorophenyl) isovalerate.