Nickel(II)-Catalyzed Addition of Aryl and Heteroaryl Boroxines to the Sulfinylamine Reagent TrNSO: The Catalytic Synthesis of Sulfinamides, Sulfonimidamides, and Primary Sulfonamides

2021 ◽  
Vol 143 (38) ◽  
pp. 15576-15581
Author(s):  
Pui Kin Tony Lo ◽  
Michael C. Willis
Keyword(s):  
2020 ◽  
Author(s):  
Shunya Ohuchi ◽  
Hiroki Koyama ◽  
Hiroki Shigehisa

A catalytic synthesis of cyclic guanidines, which are found in many biologically active compounds and natu-ral products, was developed, wherein transition-metal hydrogen atom transfer and radical-polar crossover were employed. This mild and functional-group tolerant process enabled the cyclization of alkenyl guanidines bearing common protective groups, such as Cbz and Boc. This powerful method not only provided the common 5- and 6-membered rings but also an unusual 7-membered ring. The derivatization of the products afforded various heterocycles. We also investigated the se-lective cyclization of mono-protected or hetero-protected (TFA and Boc) alkenyl guanidines and their further derivatiza-tions.


2018 ◽  
Vol 16 (1) ◽  
pp. 59-65
Author(s):  
Sofiane Mekki ◽  
Lahcen Krabia ◽  
Saleh Mahmoud Saleh Mohamed ◽  
Salima Saidi-Besbes

An efficient catalytic synthesis of 4-aryl-3,4-dihydropyrimidine-2(1H)-one derivatives using copper (II), iron (III) and zinc (II) exchanged montmorillonite clays as a catalyst is described. The desired products were obtained in good yields.


2014 ◽  
Vol 11 (2) ◽  
pp. 288-294
Author(s):  
Hamidreza Barghi ◽  
Mikael Skrifvars ◽  
Mohammad Taherzadeh
Keyword(s):  

2020 ◽  
Vol 30 (2) ◽  
pp. 129-138
Author(s):  
Shin-ichi Kawaguchi ◽  
Yuki Yamamoto ◽  
Akiya Ogawa

Author(s):  
Shahab Boroun ◽  
Abolfazl Alizadeh Sahraei ◽  
Abdol Hadi Mokarizadeh ◽  
Houshang Alamdari ◽  
Frédéric-Georges Fontaine ◽  
...  

ChemSusChem ◽  
2021 ◽  
Vol 14 (3) ◽  
pp. 755-755
Author(s):  
Wahyu S. Putro ◽  
Akira Ikeda ◽  
Shinji Shigeyasu ◽  
Satoshi Hamura ◽  
Seiji Matsumoto ◽  
...  

2020 ◽  
Vol 5 (5) ◽  
Author(s):  
Laura Raimondi ◽  
Chiara Faverio ◽  
Monica Fiorenza Boselli

AbstractChiral molecules hold a mail position in Organic and Biological Chemistry, so pharmaceutical industry needs suitable strategies for drug synthesis. Moreover, Green Chemistry procedures are increasingly required in order to avoid environment deterioration. Catalytic synthesis, in particular organocatalysis, in thus a continuously expanding field. A survey of more recent researches involving chiral imidazolidinones is here presented, with a particular focus on immobilized catalytic systems.


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