An efficientsynthesis of racemic and both enantiomeric forms of heteroaryl substituted γ- and δ-lactone derivatives derived fromallyl and homoallylalcohol backbones has been accomplished via ring closing metathesis reaction. 2-Heteroaryl substituted allyl and homoallylalcohols have been efficiently resolved through enzymatic method with high ee (97–99%) and known stereochemistry. Antimicrobial