Metal-Free, Acid-Catalyzed 1,6-Conjugate Addition of NH-Sulfoximines to para-Quinone Methides: Accessing to Diarylmethine Imino Sulfanone

2021 ◽  
Author(s):  
Satish G. More ◽  
Bapurao D. Rupanawar ◽  
Gurunath Suryavanshi
Keyword(s):  
Free Acid ◽  
Conjugate Addition ◽  
Quinone Methides ◽  
Metal Free ◽  
Acid Catalyzed

Asymmetric organocatalytic synthesis of chiral 3,3-disubstituted oxindolesviaa 1,6-conjugate addition reaction

2018 ◽  
Vol 16 (29) ◽  
pp. 5301-5309 ◽  
Author(s):  
Abdul Rahman ◽  
Qiaoxia Zhou ◽  
Xufeng Lin
Keyword(s):  
Phosphoric Acid ◽  
Addition Reaction ◽  
Conjugate Addition ◽  
Quinone Methides ◽  
Acid Catalyzed

The chiral spirocyclic phosphoric acid-catalyzed enantioselective 1,6-conjugate addition reaction ofpara-quinone methides derived fromN-unprotected isatins with indoles was developed.

Metal-free construction of contiguous quaternary stereocentres with a polycyclic framework

2019 ◽  
Vol 55 (32) ◽  
pp. 4631-4634 ◽  
Author(s):  
Wei-Bin Lin ◽  
Yong Mou ◽  
Hai-Yan Lu ◽  
Zhi-Qiang Hu ◽  
Chuan-Feng Chen
Keyword(s):  
Free Acid ◽  
Metal Free ◽  
Free Construction ◽  
Acid Catalyzed

A series of contiguous all-carbon quaternary stereocentres with an arene-annulated polycyclic framework were efficiently constructed by a metal-free acid-catalyzed method.

ChemInform Abstract: Phosphoric Acid Catalyzed Asymmetric 1,6-Conjugate Addition of Thioacetic Acid to para-Quinone Methides.

ChemInform ◽  
2016 ◽  
Vol 47 (22) ◽  
Author(s):  
Nan Dong ◽  
Zhi-Pei Zhang ◽  
Xiao-Song Xue ◽  
Xin Li ◽  
Jin-Pei Cheng
Keyword(s):  
Phosphoric Acid ◽  
Conjugate Addition ◽  
Thioacetic Acid ◽  
Quinone Methides ◽  
Acid Catalyzed

ChemInform Abstract: Metal-Free, Acid-Catalyzed ortho-Directed Synthesis of Anthranilic Acid Derivatives Using Carbodiimides.

ChemInform ◽  
2015 ◽  
Vol 46 (41) ◽  
pp. no-no
Author(s):  
Adrian S. Culf ◽  
Miroslava Cuperlovic-Culf ◽  
Rodney J. Ouellette ◽  
Andreas Decken
Keyword(s):  
Anthranilic Acid ◽  
Free Acid ◽  
Metal Free ◽  
Directed Synthesis ◽  
Acid Catalyzed ◽  
Anthranilic Acid Derivatives

Phosphoric Acid Catalyzed Asymmetric 1,6-Conjugate Addition of Thioacetic Acid to para -Quinone Methides

2015 ◽  
Vol 55 (4) ◽  
pp. 1460-1464 ◽  
Author(s):  
Nan Dong ◽  
Zhi-Pei Zhang ◽  
Xiao-Song Xue ◽  
Xin Li ◽  
Jin-Pei Cheng
Keyword(s):  
Phosphoric Acid ◽  
Conjugate Addition ◽  
Thioacetic Acid ◽  
Quinone Methides ◽  
Acid Catalyzed
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