137124-89-1Relevant academic research and scientific papers
An efficient three-step synthesis of cyclopenta[b]pyrans via 2-donor-substituted fischer ethenylcarbenechromium complexes
De Meijere, Armin,Schirmer, Heiko,Stein, Frank,Funke, Frank,Duetsch, Michael,Wu, Yao-Ting,Noltemeyer, Mathias,Belgardt, Thomas,Knieriem, Burkhard
, p. 4132 - 4148 (2007/10/03)
A wide range of cyclopenta[b]pyrans 4 has been synthesized in a one-pot reaction by treatment of different 2-donorsubstituted ethenylcarbenechromium complexes 2 with alkynes in THF in moderate to excellent yields (41-90% for 14 out of 25 examples). The st
