83564-77-6Relevant academic research and scientific papers
Synthesis of 4,5-fused tricyclic quinolines via an acid-promoted intramolecular Friedel-Crafts allenylation of aniline derivatives
Suzuki, Yuta,Nemoto, Tetsuhiro,Nakano, Shun-Ichi,Zhao, Zengduo,Yoshimatsu, Yuta,Hamada, Yasumasa
, p. 6726 - 6728 (2014)
A novel method for synthesizing 4,5-fused tricyclic quinoline derivatives based on an acid-promoted intramolecular Friedel-Crafts allenylation of anilines. Using aryl group-substituted propargyl alcohol derivatives with a meta-substituted N-Boc aniline unit as substrates, a four-step reaction sequence involving an acid-promoted intramolecular Friedel-Crafts allenylation of anilines, an acid-promoted intramolecular C-N bond formation, deprotection of the Boc group, and air oxidation proceeded in a single pot, producing the corresponding 4,5-fused tricyclic quinoline derivatives in 31-84% yield.
Gold-catalyzed N, O-functionalizations of 6-allenyl-1-ynes with n-hydroxyanilines to construct benzo[b]-azepin-4-one cores
Raj, Antony Sekar Kulandai,Kale, Balaji S.,Mokar, Bhanudas Dattatray,Liu, Rai-Shung
supporting information, p. 5340 - 5343 (2017/11/07)
Gold-catalyzed reactions of 6-allen-1-ynes with N-hydroxyanilines afford thermally stable benzoazepin-4-ones in anti-selectivity; these anti-configured products are easily isomerized to their syn-isomers on a silica column. The mechanism of reactions likely involve initial nitrone/allene cycloadditions, followed by skeletal rearrangement of resulting intermediates.
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)
A VERSATILE METHOD FOR THE PREPARATION OF ALLENIC ALCOHOLS
Keck, Gary E.,Webb, R.R.
, p. 3051 - 3054 (2007/10/02)
A convenient three step procedure to a variety of allenic alcohols is described, which relies on a highly unusual partitioning between two reaction pathways depending on the mode of addition of a reagent.
