All are examples for Nucleophilic addition reaction.
6. Nitrile with R-Li/RMgX gives Ketone
Ester with excess Grignard reagent/RLi gives tertiary alcohol
Acid chloride gets converted into ketone by Gilmanns reagent R2CuLi
Lactones gives tertiary alcohol with excess Grignard reagent.
7. Cyclic hemiacetal is formed by Nucleophilic addition

Acyl Derivatives rev. 10/27/2019 page 5 Drow the expected products from reaction with organometallics reagents: CEN...
PS 21.1 Acyl Derivatives prow the mec w the mechanism for this transformation: rex. 10/27/2019 page 4 CH3- Mger Ho Ch OH CI a (2 equiv) CH, 5. Draw the expected reduction products: OCH, LAH e NEC-CH2-CH, DIBAL,