Ruthenium-catalyzed [2+2] cycloadditions of bicyclic alkenes and ynamides
作者:Karine Villeneuve、Nicole Riddell、William Tam
DOI:10.1016/j.tet.2005.11.081
日期:2006.4
Ruthenium-catalyzed [2+2] cycloadditionsbetweenbicyclicalkenes and ynamides were investigated. The ynamide moiety was found to be compatible with the ruthenium-catalyzedcycloaddition conditions giving the corresponding cyclobutene cycloadducts in moderate to good yields (up to 97%). Diastereoselective cycloaddition utilizing chiral cyclic ynamides were also examined and a low to moderate level
Palladium‐Catalyzed Silylcyanation of Ynamides: Regio‐ and Stereoselective Access to Tetrasubstituted 3‐Silyl‐2‐Aminoacrylonitriles
作者:Pierre Hansjacob、Frédéric R. Leroux、Vincent Gandon、Morgan Donnard
DOI:10.1002/anie.202200204
日期:2022.3.28
Tetrasubstituted 2-aminoacrylonitriles (α-enaminonitriles) are underinvestigated building blocks due to the lack of methodologies to synthesize them in a controlled manner. A general access to these valuable scaffolds accompanied by mechanistic investigations and DFT calculations is described. This highly regio- and stereoselective strategy relies on the use of the first intermolecular silylcyanation
Ruthenium-Catalyzed [2 + 2] Cycloadditions of Ynamides
作者:Nicole Riddell、Karine Villeneuve、William Tam
DOI:10.1021/ol0512841
日期:2005.8.1
[GRAPHICS]Ruthenium-catalyzed [2 + 2] cycloadditions between norbornene and ynamides were investigated. The ynamide moiety was found to be compatible with the ruthenium-catalyzed cycloaddition conditions, giving the corresponding cyclobutene cycloadducts in moderate to good yields (up to 97%).
SYNTHESIS OF YNAMIDES BY N-ALKYNYLATION OF AMINE DERIVATIVES. PREPARATION OF N-ALLYL-N-(METHOXYCARBONYL)-1,3-DECADIYNYLAMINE
作者:Kohnen, Amanda L.、Dunetz, Joshua R.、Danheiser, Rick L.、Denmark, Scott E.、Liu, Xiaorong