Synthesis of 3,6-dialkyl-5,6-dihydro-4-hydroxy-pyran-2-one

Details Synthesis of 3,6-dialkyl-5,6-dihydro-4-hydroxy-pyran-2-one Synthesis of 3,6-dialkyl-5,6-dihydro-4-hydroxy-pyran-2-one

2005-02-22

2005-02-22

Owens, Amelia A. (Department: 1625)

Organic compounds -- part of the class 532-570 series

Organic compounds

Carboxylic acid esters

C560S188000

Reexamination Certificate

active

06858749

ABSTRACT:
The present invention relates to a novel process for producing a δ-lactone of the formula:using an acyl halide of the formula:wherein R1, R2R3and X are described herein, as well as novel intermediates. In particular, the present invention relates to a process for enantioselectively producing the (R)-δ-lactone.

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