Catalyst-Free Chemoselective Synthesis of 3,4-Dihydroquinazoline-2-thiones and 2-Imino[1,3]benzothiazines

2016 ◽  
Vol 81 (21) ◽  
pp. 10499-10505 ◽  
Author(s):  
Ting Xie ◽  
Yu Xiao ◽  
Shuai Zhao ◽  
Xiu-Qin Hu ◽  
Peng-Fei Xu
Keyword(s):  
Catalyst Free ◽  
Chemoselective Synthesis

Chemoselective Synthesis of Aryl Ketones from Amides and Grignard Reagents via C(O)–N Bond Cleavage under Catalyst-Free Conditions

2019 ◽  
Vol 84 (18) ◽  
pp. 11823-11838 ◽  
Author(s):  
Popuri Sureshbabu ◽  
Sadaf Azeez ◽  
Nalluchamy Muniyappan ◽  
Shahulhameed Sabiah ◽  
Jeyakumar Kandasamy
Keyword(s):  
Bond Cleavage ◽  
Grignard Reagents ◽  
Catalyst Free ◽  
Chemoselective Synthesis ◽  
Aryl Ketones

A Catalyst‐Free Domino Protocol for the Chemoselective Synthesis of Multifunctionalised Pyrroles in Aqueous MediaviaNitroketene‐N,S‐Acetal Chemistry

2018 ◽  
Vol 3 (23) ◽  
pp. 6334-6337 ◽  
Author(s):  
Ankita Chaudhary ◽  
Jitender M. Khurana ◽  
Garima Khanna ◽  
Mohit Saroha
Keyword(s):  
Catalyst Free ◽  
Chemoselective Synthesis

ChemInform Abstract: On Water: Catalyst-Free Chemoselective Synthesis of Highly Functionalized Tetrahydroquinazolines from 2-Aminophenylacrylate

ChemInform ◽  
2015 ◽  
Vol 46 (29) ◽  
pp. no-no
Author(s):  
Rakesh K. Saunthwal ◽  
Monika Patel ◽  
Rakesh K. Tiwari ◽  
Keykavous Parang ◽  
Akhilesh K. Verma
Keyword(s):  
Catalyst Free ◽  
Chemoselective Synthesis

On water: catalyst-free chemoselective synthesis of highly functionalized tetrahydroquinazolines from 2-aminophenylacrylate

2015 ◽  
Vol 17 (3) ◽  
pp. 1434-1441 ◽  
Author(s):  
Rakesh K. Saunthwal ◽  
Monika Patel ◽  
Rakesh K. Tiwari ◽  
Keykavous Parang ◽  
Akhilesh K. Verma
Keyword(s):  
Free Atom ◽  
Catalyst Free ◽  
Environmental Friendly ◽  
Chemoselective Synthesis

A green and catalyst free atom-ecomonic straightforward tandem approach for the synthesis of highly functionalized tetrahydroquinazolines by the reaction of 2-aminophenylacrylate 1 with isothiocyanates 2 using water as an environmental friendly solvent is described.

ChemInform Abstract: An Efficient Catalyst-Free and Chemoselective Synthesis of Azobenzenes from Nitrobenzenes.

ChemInform ◽  
2015 ◽  
Vol 46 (11) ◽  
pp. no-no
Author(s):  
Sitaram H. Gund ◽  
Radheshyam S. Shelkar ◽  
Jayashree M. Nagarkar
Keyword(s):  
Efficient Catalyst ◽  
Catalyst Free ◽  
Chemoselective Synthesis

An efficient catalyst-free and chemoselective synthesis of azobenzenes from nitrobenzenes

RSC Advances ◽  
2014 ◽  
Vol 4 (81) ◽  
pp. 42947-42951 ◽  
Author(s):  
Sitaram H. Gund ◽  
Radheshyam S. Shelkar ◽  
Jayashree M. Nagarkar
Keyword(s):  
Efficient Catalyst ◽  
Catalyst Free ◽  
Chemoselective Synthesis

Metal-Free Photoinduced Hydroalkylation Cascade Enabled by an Electron-Donor-Acceptor Complex

2020 ◽  
Author(s):  
José Tiago Menezes Correia ◽  
Gustavo Piva da Silva ◽  
Camila Menezes Kisukuri ◽  
Elias André ◽  
Bruno Pires ◽  
...  
Keyword(s):  
Electron Donor ◽  
Functional Group ◽  
Photoexcited Electron ◽  
One Pot ◽  
Quaternary Centers ◽  
Metal Free ◽  
Acceptor Complex ◽  
Catalyst Free ◽  
Donor Acceptor ◽  
Radical Cascade

A metal- and catalyst-free photoinduced radical cascade hydroalkylation of 1,7-enynes has been disclosed. The process is triggered by a SET event involving a photoexcited electron-donor-aceptor complex between NHPI ester and Hantzsch ester, which decomposes to afford a tertiary radical that is readily trapped by the enyne. <a>The method provides an operationally simple, robust and step-economical approach to the construction of diversely functionalized dihydroquinolinones bearing quaternary-centers. A sequential one-pot hydroalkylation-isomerization approach is also allowed giving access to a family of quinolinones. A wide substrate scope and high functional group tolerance was observed in both approaches</a>.

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