%0 Journal Article %T Triphenylphosphine promoted addition of acetylenic esters to benzofuran-2,3-dione: one-pot synthesis of Novel γ-Spirolactones %A Esmaeili, Abbas Ali %A Mohammad Ali Nasseri %A Hamid Vesalipoor %A Hamid Reza Bijanzadeh %J ARKIVOC: Online Journal of Organic Chemistry %@ 1551-7004 %D 2008