Dynamic kinetic resolution–asymmetric transfer hydrogenation of 1-aryl-substituted cyclic ketones
摘要:
A range of 1-aryl-2-tetranols, and 1-phenyl-2-indanol, have been generated in high yield and enantiomeric excess from the corresponding racemic ketones, via a dynamic kinetic resolution-transfer hydrogenation process, using Ru(II)-TsDPEN in formic acid/triethylamine (5:2). This provides a potential entry to an asymmetric total synthesis of benzazepines such as Sch 39166. (C) 2002 Elsevier Science Ltd. All rights reserved.
Dynamic kinetic resolution–asymmetric transfer hydrogenation of 1-aryl-substituted cyclic ketones
摘要:
A range of 1-aryl-2-tetranols, and 1-phenyl-2-indanol, have been generated in high yield and enantiomeric excess from the corresponding racemic ketones, via a dynamic kinetic resolution-transfer hydrogenation process, using Ru(II)-TsDPEN in formic acid/triethylamine (5:2). This provides a potential entry to an asymmetric total synthesis of benzazepines such as Sch 39166. (C) 2002 Elsevier Science Ltd. All rights reserved.
Methods for selectively synthesizing 1-aryl-2-tetralones
申请人:Corning Incorporated
公开号:US07829745B1
公开(公告)日:2010-11-09
Described herein are methods for synthesizing 1-aryl-2-tetralones in an efficient and highly selective manner. The reaction involves a one-step procedure for coupling an aryl halide to a 2-tetralone, where coupling occurs substantially at the 1-position of the 2-tetralone.
Process for the preparation of 1-aryl-3,4-dihydro-1H-naphthalene-2-one
申请人:Takenaka Junji
公开号:US20080200697A1
公开(公告)日:2008-08-21
1-aryl-3,4-dihydro-1H-naphthalene-2-one is prepared by isomerizing an epoxy compound represented by the following general formula,
wherein a is an integer of 0 to 5, b is an integer of 0 to 4, and R
1
to R
6
are hydrogen atoms or substituents such as alkyl groups,
in an organic solvent in the presence of magnesium sulfate. This process makes it possible to prepare the 1-aryl-3,4-dihydro-1H-naphthalene-2-one safely and in a high yield without using highly explosive compounds such as lithium perchlorate.
A Pd‐Catalyzed Annulation Strategy to Linearly Fused Functionalized N‐Heterocycles
作者:Larry Hoteite、Benjamin D. W. Allen、Ms. Ergaiya A. Elhajj、Anthony J. H. M. Meijer、Joseph P. A. Harrity
DOI:10.1002/chem.202400116
日期:2024.4.11
annulation strategy to linearly fused polycyclic piperidines from readily available substrates. These products can be chemoselectively functionalized to generate analogs that represent commonsubstructures in bioactive compounds.