Download PDF Opens in a new window. Article suggestions will be shown in a dialog on return to ScienceDirect. ... Please enable JavaScript to use all the features on this page. ... Cyclohex-2-en-1-yl ether can be used as a new protecting group of mono and disubstituted phenols. The cleavage of the cyclohex-2-en-1-yl ether is mild, rapid with excellent yields. ... Deprotection of cyclohex-2-en-1-yl ether to phenol with a new mild and rapid method.