74563-32-9Relevant academic research and scientific papers
Ruthenium-catalyzed transfer oxygenative cyclization of α,ω-diynes: Unprecedented [2 + 2 + 1] route to bicyclic furans via ruthenacyclopentatriene
Yamashita, Ken,Yamamoto, Yoshihiko,Nishiyama, Hisao
supporting information; experimental part, p. 7660 - 7663 (2012/06/30)
A novel oxygen-atom-transfer process enables the catalytic [2 + 2 + 1] synthesis of bicyclic furans from α,ω-diynes with DMSO. [CpRu(AN)3]PF6 catalyzed the transfer oxygenative cyclization of diynes with aryl terminal groups, while t
Zinc-promoted reactions. 8. The effect of ring strain in the reduction of 1,2-dibenzoylcycloalkanes
Di Vona, Maria Luisa,Luchetti, Luciana,Rosnati, Vittorio
, p. 2949 - 2954 (2007/10/02)
Ring cleavage was the main route in the Zn reduction of 1 in neat AcOH, while selective carbonyl reduction predominated in the presence of LiCl. The less strained 2 underwent only carbonyl reduction with Zn/AcOH. The Clemmensen reduction of both 1 and 2 resulted mainly in acyclic products. The unstrained 3 was fairly resistant towards reduction, and did not undergo ring cleavage.
Reductive Metalation of 1,3-Diphenylisobenzofuran. Stereoselective Formation of Cis Products
Smith, James G.,McCall, Robert B.
, p. 3982 - 3986 (2007/10/02)
1,3-Diphenylisobenzofuran was reduced in tetrahydrofuran by alkali metals to a dianion.This dianion on protonation, methylation, or carboxylation gave products which were predominantly cis.It is suggested that the dianion or the intermediate monoreacted monoanion adopts a preferred conformation in which steric interaction between the phenyl substituents is minimized and orbital overlap between the carbanion and the benzene ring is maximized.By use of this stereoselectivity of the dianion, a series of 1,3-polymethylene-bridged 1,3-diphenylphthalans was prepared.The possibility of single electron transfer during the alkylation of the dianion was examined by alkylating the dianion with tert-butyl halides.Complex reaction mixtures were formed but extensive alkylation occurred and mono- and dialkylation products were characterized.
