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Addition of aldehydes with alcohols -
Produces an unstable hemiacetal intermediate, which further produces acetal (gem - di alkoxy compounds)
- wherein
Addition of ketones with alcohols -
Produces an unstable hemiketal intermediate and further stable compound called ketal.
- wherein
Only (c ) is making acetal
Option 1)
as substrate and
in stoichiometric amount
Option 3)
as substrate and
in excess
Option 4)