scholarly journals Exploiting amphiphilicity: facile metal free access to thianthrenes and related sulphur heterocycles

2015 ◽  
Vol 51 (44) ◽  
pp. 9165-9168 ◽  
Author(s):  
Martin Pawliczek ◽  
Lennart K. B. Garve ◽  
Daniel B. Werz
Keyword(s):  
Free Access ◽  
Metal Free

Benzodithioloimine containing a positively and a negatively polarised sulphur is an ideal precursor for thianthrenes and related heterocycles.

A Sequential Ugi-Smiles / Transition-Metal-Free Endo-Dig Conia-ene Cyclization: The Selective Synthesis of Saccharin Substituted 2,5-dihydropyrroles

2021 ◽  
Author(s):  
Hassan Seyrani ◽  
Sorour Ramezanpour ◽  
Aref Vaezghaemi ◽  
Farzad Kobarfard
Keyword(s):  
Transition Metal ◽  
Free Access ◽  
Selective Synthesis ◽  
Metal Free ◽  
Mild Conditions

A convenient, transition-metal-free access to a series of unprecedented saccharin substituted 2,5-dihydropyrroles is reported. This approach employs a post-Ugi-Smiles 5-endo-dig Conia-ene cyclization sequence in mild conditions while incorporating a series...

Base-Controlled Regiodivergent Azidation of Trifluoromethyl Alkenyl Triflates: Transition-Metal-Free Access to CF3-Containing Allyl Azides and Alkenyl Azides

2018 ◽  
Vol 83 (5) ◽  
pp. 2858-2868 ◽  
Author(s):  
Yilong Zhao ◽  
Yuhan Zhou ◽  
Chunxia Zhang ◽  
Dong Li ◽  
Puhua Sun ◽  
...  
Keyword(s):  
Transition Metal ◽  
Free Access ◽  
Metal Free

scholarly journals An iodine-promoted one-pot and metal-free access to indolin-2-ones

2019 ◽  
Vol 43 (11-12) ◽  
pp. 542-547
Author(s):  
Yong Zhang ◽  
Xi Zong ◽  
Min Ji
Keyword(s):  
New Method ◽  
Free Access ◽  
One Pot ◽  
Oxidative Reaction ◽  
Metal Free

A new method for the synthesis of indolin-2-ones has been realized by an I2-promoted oxidative reaction from 1,2,3,3-tetramethyl-3 H-indolium iodides. This transformation proceeded smoothly under metal-free and peroxide-free conditions in a cascade manner.

Transition-Metal-Free Deacylative Cleavage of Unstrained C(sp3)–C(sp2) Bonds: Cyanide-Free Access to Aryl and Aliphatic Nitriles from Ketones and Aldehydes

2015 ◽  
Vol 18 (2) ◽  
pp. 228-231 ◽  
Author(s):  
Jing-Jie Ge ◽  
Chuan-Zhi Yao ◽  
Mei-Mei Wang ◽  
Hong-Xing Zheng ◽  
Yan-Biao Kang ◽  
...  
Keyword(s):  
Transition Metal ◽  
Free Access ◽  
Metal Free ◽  
Aliphatic Nitriles

ChemInform Abstract: Expeditious Metal-Free Access to Functionalized Polycyclic Acetals under Mild Aqueous Conditions.

ChemInform ◽  
2015 ◽  
Vol 46 (8) ◽  
pp. no-no
Author(s):  
Sanghratna Kasare ◽  
Siddheshwar K. Bankar ◽  
S. S. V. Ramasastry
Keyword(s):  
Free Access ◽  
Metal Free ◽  
Aqueous Conditions

scholarly journals Titelbild: Merging [2+2] Cycloaddition with Radical 1,4-Addition: Metal-Free Access to Functionalized Cyclobuta[a ]naphthalen-4-ols (Angew. Chem. 49/2017)

2017 ◽  
Vol 129 (49) ◽  
pp. 15677-15677
Author(s):  
Feng Liu ◽  
Jia-Yin Wang ◽  
Peng Zhou ◽  
Guigen Li ◽  
Wen-Juan Hao ◽  
...  
Keyword(s):  
Free Access ◽  
Metal Free

Transition-Metal-Free Access to Pyridocarbazoles from 2-Alkynylindole-3-carbaldehydes via Azomethine Ylide

2018 ◽  
Vol 83 (12) ◽  
pp. 6650-6663 ◽  
Author(s):  
Shalini Verma ◽  
Pawan K. Mishra ◽  
Manoj Kumar ◽  
Souvik Sur ◽  
Akhilesh K. Verma
Keyword(s):  
Transition Metal ◽  
Azomethine Ylide ◽  
Free Access ◽  
Metal Free

Transition-metal-free access to 2-aminopyridine derivatives from 2-fluoropyridine and acetamidine hydrochloride

2018 ◽  
Vol 16 (41) ◽  
pp. 7564-7567 ◽  
Author(s):  
Yibiao Li ◽  
Shuo Huang ◽  
Chunshu Liao ◽  
Yan Shao ◽  
Lu Chen
Keyword(s):  
Transition Metal ◽  
Nucleophilic Substitution ◽  
Efficient Method ◽  
Free Access ◽  
Metal Free ◽  
Catalyst Free ◽  
Hydrolysis Of

Under catalyst-free conditions, an efficient method for the synthesis of 2-aminopyridine derivatives through the nucleophilic substitution and hydrolysis of 2-fluoropyridine and acetamidine hydrochloride has been developed.

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