90976-97-9Relevant academic research and scientific papers
Sequenced Reactions with Samarium(II) Iodide. Sequential Intermolecular Carbonyl Addition/Intramolecular Nucleophilic Acyl Substitution for the Preparation of Seven-, Eight-, and Nine-Membered Carbocycles
Molander, Gary A.,Alonso-Alija, Cristina
, p. 4366 - 4373 (2007/10/03)
Samarium(II) iodide has been employed to promote a tandem intermolecular carbonyl addition/ intramolecular nucleophilic acyl substitution sequence, generating seven-through nine-membered monocyclic, bicyclic, and tricyclic ring systems with good yields an
Substituent Effects on Hydrogenation of Aromatic Rings: Hydrogenation vs. Hydrogenolysis in Cyclic Analogues of Benzyl Ethers.
Anzalone, Luigi,Hirsch, Jerry A.
, p. 2128 - 2133 (2007/10/02)
Carbalkoxy substituents are shown to retard the hydrogenation of aromatic rings over Rh/C catalyst.Hydrogenolysis predominates with acyclic (benzyloxy)acetates over this catalyst, but both hydrogenation and hydrogenolysis become sluggish with 2-isochroman-4-ones (1).However, phthalides may be cleanly hydrogenated in moderate to excellent yields without significant hydrogenolysis.Placing a benzyl ether in a ring system appears to greatly retard hydrogenolysis relative to the acyclic analogues.
