SEARCH Articles Figures Tables 0-benzylidene acetals regioselective openings 1.2- epoxides regioselective ring-opening Epoxide opening, regioselectivity Epoxide regioselective ring-opening Epoxides regioselective opening Lactones regioselective ring-opening Oxirane reactions ring opening regioselectivity Regioselective ring opening Regioselective ring-opening polymerization Regioselectivity electrophilic ring opening Regioselectivity epoxide ring opening Regioselectivity in the ring-opening Regioselectivity of Ring Opening Regioselectivity of epoxide opening Regioselectivity of epoxide ring opening Regioselectivity ring opening Ring opening electrophilic, regioselective Ring opening reactions regioselectivity Ring-opening metathesis regioselective reactions Solvent-free conditions regioselective ring opening Unsymmetrical bromonium ions open regioselectively