Transition-Metal-Free Access to Heteroaromatic-Fused 4-Tetralones by the Oxidative Ring Expansion of the Cyclobutanol Moiety

2019 ◽  
Vol 84 (15) ◽  
pp. 9611-9626 ◽  
Author(s):  
Philipp Natho ◽  
Lewis A. T. Allen ◽  
Andrew J. P. White ◽  
Philip J. Parsons
Keyword(s):  
Transition Metal ◽  
Ring Expansion ◽  
Free Access ◽  
Metal Free ◽  
Oxidative Ring Expansion

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...

scholarly journals Synthesis of Trifluoromethylated Cycloheptatrienes from N-Tosylhydrazones: Transition-Metal-Free Büchner Ring Expansion

Synlett ◽  
2014 ◽  
Vol 26 (01) ◽  
pp. 59-62 ◽  
Author(s):  
Xi Wang ◽  
Jianbo Wang ◽  
Zhikun Zhang ◽  
Jiajie Feng ◽  
Yan Xu ◽  
...  
Keyword(s):  
Transition Metal ◽  
Ring Expansion ◽  
Metal Free

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

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

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.

Transition metal-free access to 3,4-dihydro-1,2-oxaphosphinine-2-oxides from phosphonochloridates and chalcones through tandem Michael addition and nucleophilic substitution

2019 ◽  
Vol 55 (87) ◽  
pp. 13124-13127 ◽  
Author(s):  
Zhicheng Fu ◽  
Simin Sun ◽  
Anjian Yang ◽  
Fang Sun ◽  
Jiaxi Xu
Keyword(s):  
Transition Metal ◽  
Nucleophilic Substitution ◽  
Michael Addition ◽  
Nucleophilic Addition ◽  
Free Access ◽  
Metal Free

3,4-Dihydro-1,2-oxaphosphinine 2-oxides are synthesized through tandem intermolecular nucleophilic addition and cyclization of phosphonochloridates and enones in the presence of base.

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