C Kanazawa, M Terada - Tetrahedron Letters, 2007 - infona.pl
The organic-base-catalyzed 5-exo intramolecular cyclization reaction of o-alkynylbenzoic acid produces the corresponding phthalide regioselectively in good to excellent yields. The …
C Kanazawa, M Terada - Tetrahedron Letters, 2007 - tohoku.elsevierpure.com
Abstract The organic-base-catalyzed 5-exo intramolecular cyclization reaction of o- alkynylbenzoic acid produces the corresponding phthalide regioselectively in good to …