Cyclobutylcarbinols

The bromide was prepared from the cyclopropyl carbinol obtained by reduction and from the halide a rignard confound was forsted. This compound treated with formaldehyde gave among other products cyclobutylcarbinol, Whether this is to be attributed to isomerization or to the presence of cyclobutanol in the cyclopropjl alcohol is uncertain. 

The oxidation of the cyclobutylcarbinol in equation (52) with buffered PCC proceeds with partial rearrangement a 1 2 ratio of the expected aldehyde (58) to foe ring-expanded cyclic enol ether (59) is ob-... 

Grignard syntheses with acetals Cyclobutylcarbinols from 3,4-dihydropyran ring... 

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