Abstract
2-(3-Ethoxypropionyl) cyclopentanone (III) was prepared by application of 3-ethoxypropionyl chloride (II) to 1-morpholino-(I:R1, R2=-(CH2)2-O-(CH2)2-), 1-(1-pyrrolidinyl)-(I:R1, R2=-(CH2)4-), and 1-dibutylaminocyclopentene (I:R1, R2=C4H9-). 2-(3-Alkoxypropionyl) cyclopentanones (IX) were prepared by application of 3-methoxy-(VIII:R=CH3-), 3-propoxy-(VIII:R=C3H7-), and 3-butoxy-propionyl chloride (VIII:R=C4H9-) to 1-piperidinocyclopentene (I:R1=R2=-(CH2)5-). These β-diketones (III and IX) form copper chelates (IV and X) and convert into 8-alkoxy-6-oxoöctanoic acids (VI and XI). Several kinds of new methyl 8-acyloxy-6-oxoöctanoates (XIV) were prepared by addition of fatty acid to methyl 6-oxo-7-octenoate (XIII).
