34296-56-5Relevant academic research and scientific papers
Asymmetric Transformation in Photoequilibrium Systems: Diastereoselective Isomerization of N-(R)-(+)-α-Arylethylfluorene-9-spiro-1'-cyclopropane-2'-carboxamide Derivatives
Okada, Keiji,Samizo, Fumio,Oda, Masaji
, p. 1044 - 1046 (1986)
Photochemically induced asymmetric transformation in the isomerizations of N-(R)-(+)-α-arylethylfluorene-9-spiro-1'-cyclopropane-2'-carboxamide derivatives showed moderate to high diastereoselectivity.
Asymmetric Induction in 1,3-Dipolar Cycloaddition of Diazofluorene with Menthyl or 8-Phenylmenthyl Acrylate and Fumarate Derivatives
Okada, Keiji,Samizo, Fumio,Oda, Masaji
, p. 93 - 96 (2007/10/02)
Optical yields in the 1,3-dipolar cycloaddition of diazofluorene with chiral acrylate or fumarate derivatives were found to be considerably improved by use of Corey's 8-phenylmenthyl group as a chiral O-alkyl group in these esters.The absolute stereochemistry of resulting cyclopropanes is different from the one expected from the "diazo-exchange" mechanism proposed by Walborsky et al.
