Hydroxy-group effect on the regioselectivity in a photochemical oxetane formation reaction (the Paternò-Büchi Reaction) of geraniol derivatives
作者:Ken Hisamoto、Yoshikazu Hiraga、Manabu Abe
DOI:10.1039/c1pp05056g
日期:2011.9
the PB reaction at the allylic alcohol moiety, whereas the PB reaction at the unfunctionalized double bond produces the oxetane 3a. The PB reaction of the hydroxy-protected methyl ether 1b and acetate 1c gave selectively oxetanes 3b,c derived from the reaction at the more nucleophilic double bond, 2/3 ∼ 15/85. The hydroxyl-group effect was found to be small, but apparently increased the formation of 2a