(Alkynylcyclobutadiene)tricarbonyliron: new organometallic alkynes
摘要:
Treatment of (iodocyclobutadiene)tricarbonyliron (1a) with different stannylated alkynes under the conditions of Stille coupling gives the corresponding alkynylated complexes in 35-69% yields. A dinuclear (1,2-bis[(cyclobutadiene)tricarbonyliron]ethyne) and a heterometallic trimeric complex are also obtained by this route. Stannylated butadiynes also couple readily with 1a to the corresponding (cyclobutadiene)tricarbonyliron-substituted diynes.
Generation and Trapping of Radicals Derived from Cyclobutadieneiron Tricarbonyl
作者:Jeffrey H. Byers、Stephen F. Sontum、Tina S. Dimitrova、Sumaya Huque、Benjamin M. Zegarelli、Yong Zhang、Jerry P. Jasinski、Raymond J. Butcher
DOI:10.1021/om060263n
日期:2006.7.1
Trapping products consistent with the formation of radical intermediates α to and on the ring carbon of cyclobutadieneiron tricarbonyl have been synthesized. These examples constitute the first strong experimental evidence for the formation of radicals derived from cyclobutadieneiron tricarbonyl.