A diastereoselectivepalladiumcatalyzedcarbenylativeamination of ortho‐vinylaniline with 3‐diazoindolines‐2‐one have been accomplished for the synthesis of various tetrasubstituted indoline fused spirooxindole with good yields and diastereoselectivity. Notable features of the method include construction of two contiguous tetrasubstituted carbon stereocenters via C−N and C−C bond formation in single
Synthesis of 3,3-dichloro-2-oxindoles from isatin-3-p-tosylhydrazones and (dichloroiodo)benzene
作者:Charlotte Hepples、Graham K. Murphy
DOI:10.1016/j.tetlet.2015.06.063
日期:2015.8
Lewis base-catalyzed chlorination reaction that employs the hypervalent chlorinating agent PhICl2. The discovery of p-tosylhydrazones as chlorination precursors has expanded the functional group tolerance of the chlorination reaction to now include carbamates, acetamides, and sulfonates. Additionally, this allowed us to circumvent the use of the diazo group in our chlorination reaction, and offers
possess 3-allyl and 3-amino simultaneously, was first achieved by employing an intermolecular [2,3]-sigmatropic rearrangementreaction between diazooxindoles and tertiary allylic amines. Utilizing readily available allylamines as the nitrogen and allyl source concurrently, a wide range of bio-active 3-allyl-3-(amino)oxindoles were obtained in excellent yields under very mild reaction conditions; meanwhile
Synthesis of <i>N</i>-fused polycyclic indoles <i>via</i> a Pd-catalyzed multicomponent cascade reaction consisting of an amide-directed [3+1+1] annulation reaction of 3-diazo oxindole and isocyanides
作者:Pooja Soam、Debasish Mandal、Vikas Tyagi
DOI:10.1039/d3nj04886a
日期:——
A palladium-catalyzed and amide-assisted multicomponent reaction of 3-diazo oxindole, isocyanide, and water to generate biologically important oxazole-fused indole scaffolds has been reported.
Design, synthesis and biological evaluations of novel oxindoles as HIV-1 non-nucleoside reverse transcriptase inhibitors. Part I
作者:Tao Jiang、Kelli L. Kuhen、Karen Wolff、Hong Yin、Kimberly Bieza、Jeremy Caldwell、Badry Bursulaya、Tom Yao-Hsing Wu、Yun He
DOI:10.1016/j.bmcl.2006.01.073
日期:2006.4
A novel oxindole was discovered as an HIV non-nucleoside reverse transcriptase inhibitor via HTS using a cell-based assay. Systematic structural modifications were carried out to establish its SAR. These modifications led to the identification of oxindoles with low nanomolar potency for inhibiting HIV replication. These novel and potent oxindoles could serve as advanced leads for further optimizations. (C) 2006 Elsevier Ltd. All rights reserved.