Here it is
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Cyclohexylmethanole => change to Brommethylcyclohexane => change into Grignard => add Propanale => Product

Cyclohexyl methanol ---- -oxidation (PCC)-----> Cyclohexylmethanal
             Bromoethane    ----Dry Mg ---->Ethyl magnesium bromide (Grignard reagent)
Ethyl magnesium bromide  +  Cyclohexylmethanal  followed by hydrolysis will give the product

Thats correct, my proposol will give 1- Cyclohexyl-2-butanole.

Quote from: chenbeier on August 29, 2021, 03:28:03 AM
Thats correct, my proposal will give 1- Cyclohexyl-2-butanole.

please check spelling in IUPAC name

Whats wrong

https://pubchem.ncbi.nlm.nih.gov/compound/1-Cyclohexyl-2-butanol

Quote from: chenbeier on August 29, 2021, 03:28:03 AM
Thats correct, my proposol will give 1- Cyclohexyl-2-butanole.

so it is not butanole ---it is butanol.