Synthesis of Substituted γ- and δ-Lactams via Pd-Catalyzed Alkene Carboamination Reactions
作者:Jordan R. Boothe、Yifan Shen、John P. Wolfe
DOI:10.1021/acs.joc.7b00041
日期:2017.3.3
substituted γ- and δ-lactams via palladium-catalyzedalkenecarboaminationreactions between aryl halides and alkenes bearing pendant amides is described. The substrates for these reactions are generated in 1–3 steps from commercially available materials, and products are obtained in good yield with up to >20:1 diastereoselectivity. The stereochemical outcome of the alkene addition is consistent with a
Approaches to the synthesis of cytochalasans. Part 10. Cuprates as reagents for the formation of C?C bonds
作者:Michael Matthes、Christoph Tamm
DOI:10.1002/hlca.19910740720
日期:1991.10.30
Based upon our novel concept for the total synthesis of cytochalasans, the model lactams 2–9 were treated with Bu2Cu(CN)Li2. The results of these conversions vary much from those obtained with Ph2Cu(CN)Li2, demonstrating the uncertainty of predictions in cuprate chemistry. The bicyclic compound 20 was prepared in good yield. However, all attempts to convert p-toluenesulfonate 20 into the Ph-substituted