Synthesis of Berkeleylactone A by Ring‐Closing Alkyne Metathesis
作者:Frank Schmidt、Aparna Viswanathan Ammanath、Friedrich Götz、Martin E. Maier
DOI:10.1002/ejoc.202300615
日期:2023.9.21
Using some straightforward alkyne chemistry and an asymmetric dihydroxylation on a dienoate, the substrate for a ring-closing alkyne metathesis (RCAM) was assembled in a few steps. After semihydrogenation of the triple bond, the resulting macrolactone was converted to berkeleylactone A through acetal hydrolysis, allylic oxidation, thia-Michael addition, hydrogenation, and ester hydrolysis. The 8,9-didehydro
Nickel(0)-promoted synthesis of tetralin lactones from the co-cyclisation of monoynes and octa-1,7-diynes terminally substituted with ester or amide groups
作者:Parveen Bhatarah、Edward H. Smith
DOI:10.1039/p19920002163
日期:——
The co-cyclisation of octa-1,7-diynes with a variety of monoynes mediated by nickel(0) requires ester or amide groups at the terminal positions of the diyne and is subject to steric hindrance about the diyne rather than the monoyne; fused tetralin lactones are the most common products obtained in moderate to good yields. Intramolecular cyclisation of two triynes to the same type of product gives superior yields.
Synthesis and asymmetric reactivity of enantiomerically pure cyclopentadienylmetal complexes derived from the chiral pool
作者:Ronald L. Halterman、K. Peter C. Vollhardt
DOI:10.1021/om00094a015
日期:1988.4
Vo-Quang,Y. et al., Comptes Rendus Hebdomadaires des Seances de l'Academie des Sciences, 1964, vol. 258, p. 4586 - 4589
作者:Vo-Quang,Y. et al.
DOI:——
日期:——
HALTERMAN, RONALD L.;VOLLHARDT, K. PETER C., ORGANOMETALLICS, 7,(1988) N 4, 883-892