Zora Metin, Herndon James W., J. Org. Chem, 59 (1994) N 4, S 699-701
作者:Zora Metin, Herndon James W.
DOI:——
日期:——
Tandem Carbene Insertion-Semipinacol Rearrangement of 1-Alkynylcyclobutenols: A Facile Synthesis of 2-Alkenyl-4-cyclopentene-1,3-diones
作者:Metin Zora、James W. Herndon
DOI:10.1021/jo00083a002
日期:1994.2
Reaction of chromium carbene complexes and 1-alkynylcyclobutenols leads to 2-alkenyl-4-cyclopentene-1,3-diones. Initial allkyne insertion affords a highly electrophilic carbene complex, which then undergoes an alkyl shift-ring expansion, ultimately producing 2-alkenyl-4-cyclopentene-1,3-diones.
Ring expansion in the coupling of Fischer-carbene complexes with 1-alkynyl-1-hydroxy cyclic compounds
作者:Metin Zora、James W Herndon、Yuhui Li、Jason Rossi
DOI:10.1016/s0040-4020(01)00359-3
日期:2001.6
The coupling of a variety of transitionmetal–carbenecomplexes with alkynols has been studied. In many cases, the intermediate vinylcarbene complexes formed in this reaction undergo a ring expansion to afford cyclic ketone derivatives. This scope and limit of this process is explored.