146896-48-2Relevant articles and documents
W(CO)5(L)-catalyzed cyclization of α-alkynyl-β- dicarbonyl derivatives: Synthesis of methylenelactones, furans, and methylenecyclopentanes
Meng, Xiangjian,Kim, Sunggak
experimental part, p. 1960 - 1964 (2012/09/25)
W(CO)5(L)-Catalyzed cyclization of α-alkynyl-β-keto acids, keto esters, and diketones provides methylenelactones, furans, and methylenecyclopentanes via 5-exo-dig cyclization. Also, the present approach can be further applied to 5-endo-dig cycl