23637-57-2Relevant academic research and scientific papers
Unsaturated syn - And anti -1,2-amino alcohols by cyclization of allylic bis-trichloroacetimidates. Stereoselectivity dependence on substrate configuration
Grigorjeva, Liene,Kinens, Artis,Jirgensons, Aigars
, p. 920 - 927 (2015/01/30)
Disubstituted allylic bis-imidates undergo Lewis acid catalyzed or spontaneous cyclization to oxazolines, which are precursors of unsaturated amino alcohols. Stereoselectivity of the cyclization is mainly determined by the substrate configuration. Highly
Nucleophilic Attack on a Carbonyl Group Conjugated to a Chiral Centre: A Search For a Vinylogous Cram's Rule
Fleming, Ian,Kuehne, Hardy,Takai, Ken
, p. 725 - 728 (2007/10/02)
In a search for a vinylogous version of Cram's rule, 1,4-diphenylbut-2-ene-1,4-dione (5), 4-methoxy-1,4-diphenylbut-2-en-1-one (9), and hex-3-ene-2,5-dione (13) are found to be reduced with low or negligible diastereoselectivity.Similarly, the phenyl Grignard reagent showed no diastereoselectivity in its reaction with 4-methoxy-4-phenylbut-2-enal (12)
