scholarly journals Electrophilic fluoroalkylthiolation induced diastereoselective and stereospecific 1,2-metalate migration of alkenylboronate complexes

2020 ◽  
Vol 11 (30) ◽  
pp. 8020-8024 ◽  
Author(s):  
Feng Shen ◽  
Long Lu ◽  
Qilong Shen
Keyword(s):  
Transition Metal ◽  
Good Yield ◽  
Metal Free ◽  
Free Process ◽  
Boronic Esters

A transition metal free process for conjunctive functionalization of alkenylboron ate-complexes with electrophilic fluoroalkylthiolating reagents affords β-tri- and difluoroalkylthiolated boronic esters in good yield and diastereoselectivity.

Electrochemical-induced synthesis of quinazolinones via cathode hydration of o-aminobenzonitriles in aqueous solution

2021 ◽  
Author(s):  
Li Yang ◽  
Huiqing Hou ◽  
Lan Li ◽  
Jin Wang ◽  
Sunying Zhou ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Transition Metal ◽  
Metal Free ◽  
Free Process

An efficient and practical electrochemical-catalyzed transition metal-free process for the synthesis of substituted quinazolinones from simple and readily available o-aminobenzonitriles and aldehydes in water has been accomplished. I2/base and water...

One-pot transition-metal free transamidation to sterically hindered amides

2018 ◽  
Vol 5 (20) ◽  
pp. 2950-2954 ◽  
Author(s):  
Weijie Guo ◽  
Jingjun Huang ◽  
Hongxiang Wu ◽  
Tingting Liu ◽  
Zhongfeng Luo ◽  
...  
Keyword(s):  
Transition Metal ◽  
Good Yield ◽  
One Pot ◽  
Metal Free ◽  
Highly Efficient ◽  
Sterically Hindered

A highly efficient one-pot transamidation of primary amides has been developed under transition-metal free conditions, generating a variety of amides including hindered amides in good yield (up to 86%) catalyzed by CsF.

Hydride-catalyzed selectively reductive cleavage of unactivated tertiary amides using hydrosilane

2019 ◽  
Vol 9 (15) ◽  
pp. 3874-3878 ◽  
Author(s):  
Wubing Yao ◽  
Rongrong Li ◽  
Jianguo Yang ◽  
Feiyue Hao
Keyword(s):  
Transition Metal ◽  
Reductive Cleavage ◽  
Metal Free ◽  
Free Process ◽  
Tertiary Amides ◽  
Current Systems

The first hydride-catalyzed reductive cleavage of tertiary amides using the hydrosilane as reducing reagent has been developed. This transition-metal-free process may offer a versatile alternative to current systems for the selective reductive cleavage of amides.

Hydride-Induced Anionic Cyclization: An Efficient Method for the Synthesis of 6-H-Phenanthridines via a Transition-Metal-Free Process

2015 ◽  
Vol 17 (6) ◽  
pp. 1613-1616 ◽  
Author(s):  
Wei-Lin Chen ◽  
Chun-Yuan Chen ◽  
Yan-Fu Chen ◽  
Jen-Chieh Hsieh
Keyword(s):  
Transition Metal ◽  
Efficient Method ◽  
Metal Free ◽  
Free Process

Transition‐Metal‐Free C(sp 2 )–C(sp 2 ) Cross‐Coupling of Diazo Quinones with Catechol Boronic Esters

2020 ◽  
Vol 132 (37) ◽  
pp. 16336-16342
Author(s):  
Kai Wu ◽  
Liang‐Liang Wu ◽  
Cong‐Ying Zhou ◽  
Chi‐Ming Che
Keyword(s):  
Transition Metal ◽  
Cross Coupling ◽  
Metal Free ◽  
Boronic Esters

ChemInform Abstract: An Efficient, Transition-Metal-Free Process for the Synthesis of Substituted Dihydrofurans via a Michael/Cyclization Tandem Reaction.

ChemInform ◽  
2011 ◽  
Vol 42 (20) ◽  
pp. no-no
Author(s):  
Ming-Yu Wu ◽  
Ming-Qi Wang ◽  
Kun Li ◽  
Xing-Wen Feng ◽  
Ting He ◽  
...  
Keyword(s):  
Transition Metal ◽  
Tandem Reaction ◽  
Metal Free ◽  
Free Process

scholarly journals Easy Access To Allylic Sulfones Through Transition Metal-Free Hydrosulfonylation Of Allenes

2021 ◽  
Author(s):  
Lucas Pages ◽  
Sebastien Lemouzy ◽  
Marc Taillefer ◽  
Florian Monnier
Keyword(s):  
Transition Metal ◽  
Good Yield ◽  
Easy Access ◽  
Bronsted Acid ◽  
Brønsted Acid ◽  
Metal Free ◽  
Brönsted Acid ◽  
One Step

A Brønsted acid-mediated addition of (hetero)aryl and (cyclo)alkyl sodium sulfinates to <i>N</i>-allenyl derivatives is described under very smooth conditions. This reaction provided a practical and efficient protocol for the synthesis of allylic sulfones in an atom- and step-economic fashion. In addition, an one-step double hydrosulfonylation has also been demonstrated, affording the corresponding 1,3-disulfone in to good yield.<br>

ChemInform Abstract: A One-Pot Synthetic Strategy for Construction of the Dibenzodiazepine Skeleton via a Transition Metal-Free Process.

ChemInform ◽  
2015 ◽  
Vol 46 (6) ◽  
pp. no-no
Author(s):  
Shuai Fang ◽  
Xiaoyi Niu ◽  
Zeyuan Zhang ◽  
Yan Sun ◽  
Xiaomeng Si ◽  
...  
Keyword(s):  
Transition Metal ◽  
One Pot ◽  
Metal Free ◽  
Synthetic Strategy ◽  
Free Process

Transition-Metal-Free Synthesis of Pyridine Derivatives by Thermal Cyclization of N-Propargyl Enamines

Synthesis ◽  
2020 ◽  
Vol 52 (07) ◽  
pp. 1113-1121 ◽  
Author(s):  
Yuya Chikayuki ◽  
Takakane Miyashige ◽  
Shiori Yonekawa ◽  
Akiko Kirita ◽  
Natsuko Matsuo ◽  
...  
Keyword(s):  
Transition Metal ◽  
Total Synthesis ◽  
Good Yield ◽  
Environmentally Friendly ◽  
Thermal Cyclization ◽  
Pyridine Derivatives ◽  
Atom Economy ◽  
Metal Free

A transition-metal-free synthesis of pyridine derivatives by 6-endo-dig cyclization of N-propargyl enamines was developed. This method is environmentally friendly and is a high atom economy reaction that is easily accessed to provide pyridine derivatives in moderate to good yield by heating N-propargyl enamines in solvent without additives. The total synthesis of onychine was achieved in 51% yield in only two steps by using this method.

An efficient, transition-metal-free process for the synthesis of substituted dihydrofurans via a Michael/cyclization tandem reaction

2011 ◽  
Vol 52 (6) ◽  
pp. 679-683 ◽  
Author(s):  
Ming-Yu Wu ◽  
Ming-Qi Wang ◽  
Kun Li ◽  
Xing-Wen Feng ◽  
Ting He ◽  
...  
Keyword(s):  
Transition Metal ◽  
Tandem Reaction ◽  
Metal Free ◽  
Free Process
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