Literature DB >> 33172274

Rh(III)-Catalyzed Imidoyl C-H Carbamylation and Cyclization to Bicyclic [1,3,5]Triazinones.

Danielle N Confair1, Nathaniel S Greenwood1, Brandon Q Mercado1, Jonathan A Ellman1.   

Abstract

A Rh(III)-catalyzed synthesis of bicyclic [1,3,5]triazinones from a diverse array of imines coupled with ethyl (pivaloyloxy)carbamate is reported. The preparation of [5,6]- and [6,6]-bicyclic heterocycles substituted with aryl, alkyl, and alkoxy groups demonstrated a broad reaction scope. The efficiency of this approach was further enhanced with the development of a three-component variant featuring in situ imine formation. X-ray crystallographic characterization of a rhodacycle formed by imidoyl C-H activation provides support for the proposed mechanism.

Entities:  

Year:  2020        PMID: 33172274      PMCID: PMC7702018          DOI: 10.1021/acs.orglett.0c03393

Source DB:  PubMed          Journal:  Org Lett        ISSN: 1523-7052            Impact factor:   6.005


  15 in total

1.  The dearomative annulation between N-2-pyridylamidine and CO2 toward pyrido[1,2-a]-1,3,5-triazin-4-ones.

Authors:  Minfang Xia; Weiming Hu; Song Sun; Jin-Tao Yu; Jiang Cheng
Journal:  Org Biomol Chem       Date:  2017-05-16       Impact factor: 3.876

2.  Three-Component Coupling of Aldehydes, 2-Aminopyridines, and Diazo Esters via Rhodium(III)-Catalyzed Imidoyl C-H Activation: Synthesis of Pyrido[1,2- a]pyrimidin-4-ones.

Authors:  Gia L Hoang; Adam J Zoll; Jonathan A Ellman
Journal:  Org Lett       Date:  2019-03-21       Impact factor: 6.005

3.  Synthesis of 8-Aminoquinolines by Using Carbamate Reagents: Facile Installation and Deprotection of Practical Amidating Groups.

Authors:  Donghyeon Gwon; Heejun Hwang; Hye Kyung Kim; Seth R Marder; Sukbok Chang
Journal:  Chemistry       Date:  2015-10-14       Impact factor: 5.236

4.  Catalytic [2+2+1] cross-cyclotrimerization of silylacetylenes and two alkynyl esters to produce substituted silylfulvenes.

Authors:  Yu Shibata; Ken Tanaka
Journal:  Angew Chem Int Ed Engl       Date:  2011-09-16       Impact factor: 15.336

5.  Three-Component Coupling of Aldehydes, Aminopyrazoles, and Sulfoxonium Ylides via Rhodium(III)-Catalyzed Imidoyl C-H Activation: Synthesis of Pyrazolo[1,5- a]pyrimidines.

Authors:  Gia L Hoang; Andrew D Streit; Jonathan A Ellman
Journal:  J Org Chem       Date:  2018-12-10       Impact factor: 4.354

6.  Synthesis of Azolo[1,3,5]triazines via Rhodium(III)-Catalyzed Annulation of N-Azolo Imines and Dioxazolones.

Authors:  Gia L Hoang; Kim Søholm Halskov; Jonathan A Ellman
Journal:  J Org Chem       Date:  2018-06-27       Impact factor: 4.354

7.  Transition Metal-Catalyzed C-H Amination: Scope, Mechanism, and Applications.

Authors:  Yoonsu Park; Youyoung Kim; Sukbok Chang
Journal:  Chem Rev       Date:  2017-01-04       Impact factor: 60.622

8.  Mechanism of the rhodium(III)-catalyzed arylation of imines via C-H bond functionalization: inhibition by substrate.

Authors:  Michael E Tauchert; Christopher D Incarvito; Arnold L Rheingold; Robert G Bergman; Jonathan A Ellman
Journal:  J Am Chem Soc       Date:  2012-01-17       Impact factor: 15.419

9.  Rhodium(III)-Catalyzed Imidoyl C-H Activation for Annulations to Azolopyrimidines.

Authors:  Kim Søholm Halskov; Michael R Witten; Gia L Hoang; Brandon Q Mercado; Jonathan A Ellman
Journal:  Org Lett       Date:  2018-03-27       Impact factor: 6.005

10.  Annulation of Hydrazones and Alkynes via Rhodium(III)-Catalyzed Dual C-H Activation: Synthesis of Pyrrolopyridazines and Azolopyridazines.

Authors:  Andrew D Streit; Adam J Zoll; Gia L Hoang; Jonathan A Ellman
Journal:  Org Lett       Date:  2020-01-24       Impact factor: 6.005

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