can ethyl propyl shift takes place like hydride shift

Dear Student,

Yes, ethyl and propyl shift can take place just like hydride shift. Infact, any alkyl group is capable of rearrangement to stabilise the carbocation.

For example, 

The acycloin rearrangement which is a step of the synthesis of amino acid leucine, involves an ethyl shift:




Also, check the following reaction in which a five-membered ring becomes a six-membered ring because of alkyl shift:






Regards