作者:Laura Casu、Leonardo Bonsignore、Filippo Cottiglia、Giuseppe Loy、Elias Maccioni
DOI:10.1002/jhet.5570400219
日期:2003.3
7-trien-5-ones(4a-d),4,5,7,8-tetraalkyl-2-oxa-bicyclo[4.2.0]octa-1(6),4,7-trien-3-ones (6a-d) and 3,4,7,8-tetraalkyl-2H,5H-cyclobuta[b]pyrano-[2,3-d]pyran-2,5-diones (7a-d) from the reaction of alkynes (la-d) with carbon suboxide (2) in various molar ratios is described.
3,4,7,8-四烷基-2-氧杂双环[4.2.0] octa-1(6),3,7-三烯-5-酮(4a-d),4,5,7,的合成8-四烷基-2-氧杂双环[4.2.0] octa-1(6),4,7-三烯-3-酮(6a-d)和3,4,7,8-四烷基-2 H,5 ħ -cyclobuta [ b ]吡喃并[2,3- d ]吡喃-2,5-二酮类(图7a-d从炔()的反应LA-d )与二氧化三碳(2在各种摩尔比)进行说明。