Intermolecular Aminocarbonylation of Alkenes using Concerted Cycloadditions of Iminoisocyanates
作者:Amanda Bongers、Christian Clavette、Wei Gan、Serge I. Gorelsky、Lyanne Betit、Kaitlyn Lavergne、Thomas Markiewicz、Patrick J. Moon、Nicolas Das Neves、Nimrat K. Obhi、Amy B. Toderian、André M. Beauchemin
DOI:10.1021/acs.joc.6b02713
日期:2017.1.20
that the LUMO of the iminoisocyanate is reacting with the HOMO of the alkene. Computational and experimental results support a concerted asynchronous [3 + 2] cycloaddition involving an iminoisocyanate, which was observed for the first time by FTIR under the reaction conditions. The products of this reaction are complex azomethineimines, which are precursors to valuable β-amino carbonyl compounds such
[EN] PROCESS FOR THE SYNTHESIS OF BETA-AMINOCARBONYLS<br/>[FR] PROCÉDÉ DE SYNTHÈSE DE BÉTA-AMINOCARBONYLES
申请人:UNIV OTTAWA
公开号:WO2013067646A1
公开(公告)日:2013-05-16
The present application provides processes and intermediates useful in the production of β- aminocarbonyl- or β-aminothiocarbonyl-containing compounds. Provided herein is a process for synthesizing β-aminocarbonyl- or β-aminothiocarbonyl-containing compounds from an alkene and a hydrazone. Also provided herein is a process for synthesizing β-aminocarbonyl- or β-aminothiocarbonyl-containing compounds from an alkene and a hydrazine. The present application further provides intermediate aminoisocyanate and iminoisocyanate compounds, and methods for synthesizing the starting hydrazone and hydrazine compounds.
The present invention encompasses compounds of general formula (1)
wherein
R1 to R3 are defined as in claim 1, which are suitable for the treatment of diseases characterized by excessive or abnormal cell proliferation, and the use thereof for preparing a medicament having the above-mentioned properties.
The present invention encompasses compounds of general formula (1)
wherein
R
1
to R
3
are defined as in claim
1
, which are suitable for the treatment of diseases characterised by excessive or abnormal cell proliferation, and the use thereof for preparing a medicament having the above-mentioned properties.
Iridium-catalyzed selective N-allylation of hydrazines
作者:Robert Matunas、Amy J. Lai、Chulbom Lee
DOI:10.1016/j.tet.2005.03.105
日期:2005.6
A highly chemo- and regioselective iridium-catalyzed allylic amination is described. The reaction of various hydrazones and hydrazides with allylic carbonates proceeds at ambient temperature in the presence of an [Ir(COD)Cl](2)/pyridine catalyst, ammonium iodide. and diethylzinc to afford the corresponding N-allylation products in high yields with excellent chemo- and regioselectivities. Only the more nucleophilic nitrogen of a given hydrazine, derivative undergoes the C-N bond formation to yield a branched allylic isomer as the exclusive product. (c) 2005 Elsevier Ltd. All rights reserved.