1609556-16-2Relevant articles and documents
Enantioselective Alkoxycyclization of 1,6-Enynes with Gold(I)-Cavitands: Total Synthesis of Mafaicheenamine C
Martín-Torres, Inmaculada,Ogalla, Gala,Yang, Jin-Ming,Rinaldi, Antonia,Echavarren, Antonio M.
, p. 9339 - 9344 (2021)
Chiral gold(I)-cavitand complexes have been developed for the enantioselective alkoxycyclization of 1,6-enynes. This enantioselective cyclization has been applied for the first total synthesis of carbazole alkaloid (+)-mafaicheenamine C and its enantiomer, establishing its configuration as R. The cavity effect was also evaluated in the cycloisomerization of dienynes. A combination of experiments and theoretical studies demonstrates that the cavity of the gold(I) complexes forces the enynes to adopt constrained conformations, which results in the high observed regio- and stereoselectivities.
Transition-metal-mediated three-component cascade cyclization: Selective cage B-C(sp2) coupling of carborane with aromatics and synthesis of carborane-fused tricyclics
Quan, Yangjian,Qiu, Zaozao,Xie, Zuowei
supporting information, p. 7599 - 7602 (2014/06/10)
Zirconium/nickel comediated one-pot three-component cascade cyclization of carboryne, alkene, and 2-bromophenyltrimethylsilylacetylene has been achieved, leading to the formation of a series of C,C,B-substituted carborane-fused tricyclics. On the basis of