Palladium-catalyzed carbocyclization–cross-coupling reactions of two different allenic moieties: synthesis of 3-(buta-1,3-dienyl) carbazoles and mechanistic insights
Controlled Heterocyclization/Cross-Coupling Domino Reaction of β,γ-Allendiols and α-Allenic Esters: Method and Mechanistic Insight for the Preparation of Functionalized Buta-1,3-dienyl Dihydropyrans
作者:Benito Alcaide、Pedro Almendros、Teresa Martínez del Campo、M. Teresa Quirós、Elena Soriano、José L. Marco-Contelles
DOI:10.1002/chem.201300774
日期:2013.10.11
Starting from β,γ‐allendiols and α‐allenic acetates, a chemo‐ and regiocontrolled palladium‐catalyzed methodology has provided access to enantiopure 3,6‐dihydropyrans that bear a buta‐1,3‐dienyl moiety. Thus, it has been demonstrated for the first time that the preparation of six‐membered heterocycles through cross‐coupling reactions of two different allenes can be accomplished. These heterocycliz
Reaction of Two Different α-Allenols in a Heterocyclization/Cross-Coupling Sequence: Convenient Access to Functionalized Buta-1,3-dienyl Dihydrofurans
作者:Benito Alcaide、Pedro Almendros、Teresa Martínez del Campo
DOI:10.1002/anie.200601055
日期:2006.7.3
Palladium-catalyzed carbocyclization–cross-coupling reactions of two different allenic moieties: synthesis of 3-(buta-1,3-dienyl) carbazoles and mechanistic insights
作者:Benito Alcaide、Pedro Almendros、José M. Alonso、Israel Fernández
DOI:10.1039/c2cc32015k
日期:——
A palladium-catalyzed chemo-, regio- and stereoselective carbocyclizationâcross-coupling sequence of two different α-allenols to afford 3-(E-buta-1,3-dienyl) carbazoles is reported.
Regioselectivity Control in the Synthesis of Linear Conjugated Dienes Enabled by Manganese(I)-Catalyzed C–H Activation
作者:Diego G. Matesanz、Laura Gamarra、Teresa Martínez del Campo、Pedro Almendros、Sara Cembellín
DOI:10.1021/acscatal.3c04034
日期:2023.11.17
A highly selective Mn(I)-catalyzed dienylation of arenes and heteroarenes with acetylated allenes is described. The reported transformation proceeds by a simple one-pot procedure and delivers linear 1,3-dienes as single products with high stereoselectivity and total regioselectivity. A great variety of allenic substrates bearing diverse substitution patterns can be applied in this protocol where the