Metal-free direct oxidative intermolecular diarylation of anilides at ambient temperature assisted by cascade selective formation of C–C and C–N bonds

2012 ◽  
Vol 48 (26) ◽  
pp. 3194 ◽  
Author(s):  
Rajarshi Samanta ◽  
Jonas Lategahn ◽  
Andrey P. Antonchick
Keyword(s):  
Ambient Temperature ◽  
Metal Free ◽  
Selective Formation

Transition metal free, green and facile halogenation of ketene dithioacetals using a KX–oxidant system

2021 ◽  
Author(s):  
Vishakha Rai ◽  
Ganesh Shivayogappa Sorabad ◽  
Mahagundappa Rachappa Maddani
Keyword(s):  
Transition Metal ◽  
Ambient Temperature ◽  
Metal Free ◽  
Ketene Dithioacetals ◽  
System P ◽  
Oxidative Halogenation ◽  
Potassium Halide

A facile oxidative halogenation of α-oxo ketene dithioacetals is achieved by using a potassium halide and an oxidant combination under transition metal free conditions at ambient temperature.

Organocatalytic, Oxidative, Intramolecular CH Bond Amination and Metal-free Cross-Amination of Unactivated Arenes at Ambient Temperature

2011 ◽  
Vol 50 (37) ◽  
pp. 8605-8608 ◽  
Author(s):  
Andrey P. Antonchick ◽  
Rajarshi Samanta ◽  
Katharina Kulikov ◽  
Jonas Lategahn
Keyword(s):  
Ambient Temperature ◽  
Metal Free

Metal-free, air-promoted, radical-mediated arylation of benzoquinone with phenylhydrazines

2018 ◽  
Vol 73 (10) ◽  
pp. 703-706 ◽  
Author(s):  
Mohammad Hosein Sayahi ◽  
Samira Ansari ◽  
Seyyed Jafar Saghanezhad ◽  
Mohammad Mahdavi
Keyword(s):  
Ambient Temperature ◽  
Reaction Conditions ◽  
Direct Arylation ◽  
Metal Free ◽  
Free Air ◽  
Pharmaceutical Materials

AbstractAn efficient, economic, and air-promoted metal-free method for direct arylation of benzoquinone with phenylhydrazines was developed. This approach leads to the formation of corresponding [1,1′-biphenyl]-2,5-dione derivatives as biological and pharmaceutical materials of interest in good yields, under mild reaction conditions, and at ambient temperature.

Room Temperature, Metal-Free, Regio-Selective Arylselenation of Anilines Using Diselenides as Selenium Source

Synthesis ◽  
2022 ◽  
Author(s):  
Rekha Bai ◽  
Kamlesh Kumar Dabaria ◽  
Satpal Singh Badsara
Keyword(s):  
Ambient Temperature ◽  
Room Temperature ◽  
Bond Formation ◽  
Metal Free ◽  
Aniline Derivatives

A metal-free direct C-H selenation of aniline derivatives via an iodine catalysed C-Se bond formation using diselenides as a selenium source at ambient temperature is described. A variety of aniline derivatives underwent regio-selective C-H selenation with different diselenides to afford the corresponding aryl selenoethers in good to excellent yields.

Metal-Free Oxidative C-H Bond Amination at Ambient Temperature

Synlett ◽  
2012 ◽  
Vol 23 (06) ◽  
pp. 809-813 ◽  
Author(s):  
Andrey Antonchick ◽  
Rajarshi Samanta
Keyword(s):  
Ambient Temperature ◽  
Metal Free

A Metal-free Catalytic Reduction of α,β-unsaturated Carbonyl Compounds with Phenyldimethylsilane

2005 ◽  
Vol 2005 (7) ◽  
pp. 469-470 ◽  
Author(s):  
Ruizhu Mu ◽  
Zhengang Liu ◽  
Zhongquan Liu ◽  
Li Yang ◽  
Longmin Wu ◽  
...  
Keyword(s):  
Ambient Temperature ◽  
Carbonyl Compounds ◽  
Catalytic Reduction ◽  
Selective Reduction ◽  
Catalytic Amount ◽  
Metal Free

Selective reduction of α,β-unsaturated carbonyl compounds to the corresponding saturated ones by phenyldimethyl silane was promoted by a catalytic amount of I2O5 at ambient temperature in CH2Cl2.

ChemInform Abstract: Metal-Free Oxidative C-H Bond Amination at Ambient Temperature

ChemInform ◽  
2012 ◽  
Vol 43 (24) ◽  
pp. no-no
Author(s):  
Rajarshi Samanta ◽  
Andrey P. Antonchick
Keyword(s):  
Ambient Temperature ◽  
Metal Free

Metal-free regioselective C–H chalcogenylation of coumarins/(hetero)arenes at ambient temperature

2020 ◽  
Vol 56 (12) ◽  
pp. 1847-1850
Author(s):  
Zengqiang Song ◽  
Chaochao Ding ◽  
Shaoli Wang ◽  
Qian Dai ◽  
Yaoguang Sheng ◽  
...  
Keyword(s):  
Ambient Temperature ◽  
Room Temperature ◽  
Practical Method ◽  
Metal Free

A novel and practical method for the direct regioselective chalcogenylation of coumarins at the C3-postion and selenation of other (hetero)arenes has been achieved using PIFA as a promoter at room temperature.

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