RIZZO, CARMELO J.;DUNLAP, NORMA K.;SMITH, AMOS B. , III, J. ORG. CHEM., 52,(1987) N 23, 5280-5283
作者:RIZZO, CARMELO J.、DUNLAP, NORMA K.、SMITH, AMOS B. , III
DOI:——
日期:——
Regioselective Synthesis of Trisubstituted Cyclopentadienyl Ligands from Furans
作者:Aurelio G. Csáky、Claudia Contreras、Myriam Mba、Joaquín Plumet
DOI:10.1055/s-2002-34148
日期:——
1,2,3- And 1,2,4-trisubstituted cyclopentadienyl manganese tricarbonyl compounds have been synthesized regioselectively from furans following a common synthetic strategy. The key steps include the transformation of furylcarbinols into hydroxycyclopentenones followed by the conjugate addition of Grignard reagents under chelation directed conditions. This affords hydroxycyclopentanones which can be dehydrated to cyclopentenones. These compounds are further elaborated into the final targets by the 1,2-addition of organolithium reagents.