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

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...

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.

Transition-Metal-Free Access to Primary Anilines from Boronic Acids and a Common +NH2 Equivalent.

2015 ◽  
Vol 80 (5) ◽  
pp. 2545-2553 ◽  
Author(s):  
Samantha Voth ◽  
Joshua W. Hollett ◽  
J. Adam McCubbin
Keyword(s):  
Transition Metal ◽  
Boronic Acids ◽  
Free Access ◽  
Metal Free

Carboxylative cyclization of substituted propenyl ketones using CO2: transition-metal-free synthesis of α-pyrones

2016 ◽  
Vol 18 (15) ◽  
pp. 4181-4184 ◽  
Author(s):  
Wen-Zhen Zhang ◽  
Ming-Wang Yang ◽  
Xiao-Bing Lu
Keyword(s):  
Transition Metal ◽  
Free Access ◽  
Metal Free ◽  
Substituted 1

Carboxylative cyclization of substituted 1-propenyl ketones via γ-carboxylation using CO2 provides an efficient, straightforward, and transition-metal-free access to α-pyrone compounds.

Transition-metal-free access to 7-azaindoles

Tetrahedron ◽  
2018 ◽  
Vol 74 (30) ◽  
pp. 4100-4110 ◽  
Author(s):  
Dong Wang ◽  
Jianyong Hu ◽  
Junjie Zhao ◽  
Meng Shen ◽  
Yuxi Wang ◽  
...  
Keyword(s):  
Transition Metal ◽  
Free Access ◽  
Metal Free
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