Novel, Metal-Free, Superacid-Catalyzed “Click” Reactions of Isatins with Linear, Nonactivated, Multiring Aromatic Hydrocarbons

2010 ◽  
Vol 43 (17) ◽  
pp. 6968-6979 ◽  
Author(s):  
M. Carmen G. Hernandez ◽  
Mikhail G. Zolotukhin ◽  
Serguei Fomine ◽  
Gerardo Cedillo ◽  
Salvador L. Morales ◽  
...  
Keyword(s):  
Aromatic Hydrocarbons ◽  
Click Reactions ◽  
Metal Free

External electric field control: driving the reactivity of metal-free azide–alkyne click reactions

2017 ◽  
Vol 19 (33) ◽  
pp. 22482-22486 ◽  
Author(s):  
Kalishankar Bhattacharyya ◽  
Sharmistha Karmakar ◽  
Ayan Datta
Keyword(s):  
Electric Field ◽  
External Electric Field ◽  
Efficient Catalyst ◽  
Click Reactions ◽  
Metal Free ◽  
Field Control

An external electric field is demonstrated as an efficient catalyst to accelerate click reactions.

scholarly journals Polycyclic aromatic azomethine ylides: a unique entry to extended polycyclic heteroaromatics

2015 ◽  
Vol 6 (1) ◽  
pp. 436-441 ◽  
Author(s):  
Reinhard Berger ◽  
Manfred Wagner ◽  
Xinliang Feng ◽  
Klaus Müllen
Keyword(s):  
Polycyclic Aromatic Hydrocarbons ◽  
Aromatic Hydrocarbons ◽  
Azomethine Ylides ◽  
Metal Free ◽  
Polycyclic Aromatic

Based on polycyclic aromatic azomethine ylides, a metal-free “cycloaddition-planarization-sequence” is proposed, providing a unique entry to nitrogen-containing polycyclic aromatic hydrocarbons.

Three-Fold Metal-Free Efficient (“Click”) Reactions onto a Multifunctional Poly(2-oxazoline) Designer Scaffold

2011 ◽  
Vol 44 (16) ◽  
pp. 6424-6432 ◽  
Author(s):  
Kristian Kempe ◽  
Richard Hoogenboom ◽  
Michael Jaeger ◽  
Ulrich S. Schubert
Keyword(s):  
Click Reactions ◽  
Metal Free

scholarly journals Fucosylated ubiquitin and orthogonally glycosylated mutant A28C: conceptually new ligands for Burkholderia ambifaria lectin (BambL)

2020 ◽  
Vol 11 (47) ◽  
pp. 12662-12670
Author(s):  
Sakonwan Kuhaudomlarp ◽  
Linda Cerofolini ◽  
Sabrina Santarsia ◽  
Emilie Gillon ◽  
Silvia Fallarini ◽  
...  
Keyword(s):  
Protein Scaffolds ◽  
Click Reactions ◽  
Metal Free ◽  
High Affinity ◽  
Burkholderia Ambifaria

Metal free click reactions used to glycosylate ubiquitin and its mutant A28C afforded two protein scaffolds with high affinity for Burkholderia ambifaria lectin (BambL).

Metal-free naphthannulation reactions of yne-allenone esters for accessing polycyclic aromatic hydrocarbons

2018 ◽  
Vol 54 (74) ◽  
pp. 10415-10418 ◽  
Author(s):  
Hong-Kai Sha ◽  
Ting Xu ◽  
Feng Liu ◽  
Bu-Zheng Tang ◽  
Wen-Juan Hao ◽  
...  
Keyword(s):  
Polycyclic Aromatic Hydrocarbons ◽  
Aromatic Hydrocarbons ◽  
Free Base ◽  
Metal Free ◽  
Direct Assembly ◽  
Wide Range ◽  
Polycyclic Aromatic

The first metal-free base-promoted naphthannulation reactions of yne-allenone esters were developed for the direct assembly of a wide range of polycyclic aromatic hydrocarbons with generally good yields.

An atom- and pot-economical consecutive multi-step reaction approach to polycyclic aromatic hydrocarbons (PAHs)

2017 ◽  
Vol 53 (11) ◽  
pp. 1904-1907 ◽  
Author(s):  
Chada Raji Reddy ◽  
Uredi Dilipkumar ◽  
Ravula Shravya
Keyword(s):  
Polycyclic Aromatic Hydrocarbons ◽  
Aromatic Hydrocarbons ◽  
Reaction Conditions ◽  
Metal Free ◽  
Polycyclic Aromatic

A novel [4+2]-benzannulation approach to substituted polycyclic aromatic hydrocarbons has been developed under atom-economical, mild and metal-free reaction conditions.

(Z)-Selective anti-Markovnikov or Markovnikov thiol–yne-click reactions of an internal alkyne by amide hydrogen bond control

2020 ◽  
Vol 56 (20) ◽  
pp. 2991-2994 ◽  
Author(s):  
Milan Pramanik ◽  
Khokan Choudhuri ◽  
Subhayan Chakraborty ◽  
Arindam Ghosh ◽  
Prasenjit Mal
Keyword(s):  
Hydrogen Bond ◽  
Hydrogen Bonding ◽  
Amide Hydrogen ◽  
Click Reactions ◽  
Metal Free ◽  
Hydrogen Bonding Interactions ◽  
Internal Alkyne

Hydrogen bonding interactions like N–H⋯S, N–H⋯N and C–H⋯O helped to obtain either (Z)-selective anti-Markovnikov or Markovnikov Thiol–Yne-Click products exclusively with excellent yields from an internal alkyne under metal free conditions.

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