On January 17, 2020, Feng, Jiaxu; Chen, Yingying; Qin, Wenhui; Huang, You published an article.Application In Synthesis of 2-(2,3-Dihydro-1H-inden-1-ylidene)malononitrile The title of the article was Phosphine-Catalyzed (3 + 2)/(3 + 2) Sequential Annulation of γ-Vinyl Allenoates: Access to Fused Carbocycles. And the article contained the following:
The first (3 + 2)/(3 + 2) sequential annulation of γ-vinyl allenoates with alkylidenemalononitriles enabled by phosphine catalysis has been reported. A broad range of structurally dense tetra- and penta-substituted bicyclic[3,3,0]octene derivatives, containing a quaternary center and three sequential stereogenic center, were synthesized in good to excellent yields. In this approach, three new C-C bonds are formed in one pot, and εC and αC of γ-vinyl allenoate are two electrophilic centers, whereas its γC exhibits nucleophilic reactivity. The experimental process involved the reaction of 2-(2,3-Dihydro-1H-inden-1-ylidene)malononitrile(cas: 2510-01-2).Application In Synthesis of 2-(2,3-Dihydro-1H-inden-1-ylidene)malononitrile
The Article related to alkylidenemalononitrile vinyl allenoate phosphine catalyst sequential diastereoselective annulation, fused carbocycle one pot preparation, Alicyclic Compounds: Tricyclic Compounds and Higher Analogs, Including Adamantanes, Fullerenes and other aspects.Application In Synthesis of 2-(2,3-Dihydro-1H-inden-1-ylidene)malononitrile
Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts