Divergent Reaction of Isocyanides with <i>o</i>-Bromobenzaldehydes: Synthesis of Ketenimines and Lactams with Isoindolinone Cores
作者:Yi-Ming Zhu、Yizhan Fang、Haiyan Li、Xiao-Ping Xu、Shun-Jun Ji
DOI:10.1021/acs.orglett.1c02422
日期:2021.10.1
A divergent reaction of isocyanides with o-bromobenzaldehydes for the synthesis of isoindolinone-derived ketenimines and lactams was disclosed. The reaction features readily available reactants, relatively mild conditions, and high yields of products. Ketenimines could be applied in further transformations for access to other functional molecules. A mechanism study showed that the palladium-migration/imine-insertion
申请人:THE UNITED STATES OF AMERICA, AS REPRESENTED BY THE SECRETARY, DEPARTMENT OF HEALTH AND HUMAN SERVICES
公开号:US10730835B2
公开(公告)日:2020-08-04
Thalidomide analogs and methods of using the thalidomide analogs are disclosed. Some embodiments of the disclosed compounds exhibit anti-angiogenic and/or anti-inflammatory activity. Certain embodiments of the disclosed compounds are non-teratogenic.
Application of Phthalimidine Synthesis with Use of 1,2,3-1H-Benzotriazole and 2-Mercaptoethanol as Dual Synthetic Auxiliaries. 2. Effective Synthesis of Phthalimidines Possessing Bulky Group at 2-Position
Potentially bioactive phthalimidines are prepared in fair to good isolated yields by the 1:1 condensation reaction of o-phthalaldehyde with a variety of sterically-hindered primary alkyl amines in the presence of 1,2,3-1 H-benzotriazole and 2-mercaptoethanol as dual synthetic auxiliaries.
THALIDOMIDE ANALOGS AND METHODS OF USE
申请人:The USA, as represented by the Secretary, Department of Health and Human Services
公开号:US20200325102A1
公开(公告)日:2020-10-15
Thalidomide analogs and methods of using the thalidomide analogs are disclosed. Some embodiments of the disclosed compounds exhibit anti-angiogenic and/or anti-inflammatory activity. Certain embodiments of the disclosed compounds are non-teratogenic.
Isoindolinone Synthesis: Selective Dioxane-Mediated Aerobic Oxidation of Isoindolines
作者:Pawan Thapa、Esai Corral、Sinjinee Sardar、Brad S. Pierce、Frank W. Foss
DOI:10.1021/acs.joc.8b01920
日期:2019.1.18
N-Alkyl and N-aryl-isoindolinones were prepared by a dioxane-mediated oxidation of isoindoline precursors. The transformation exhibits unique chemoselectivity for isoindonlines. A chiral tertiary (3°)-benzylic position was not racemized during oxidation, and methyl indoprofen was prepared by late stage oxidation. Mechanistic studies suggest a selective H atom transfer, which avoids many known oxidation (by-)products