ChemInform Abstract: Broensted Acid-Catalyzed, Highly Enantioselective Addition of Enamides to in situ-Generated ortho-Quinone Methides: A Domino Approach to Complex Acetamidotetrahydroxanthenes.

ChemInform ◽  
2015 ◽  
Vol 46 (25) ◽  
pp. no-no
Author(s):  
Satyajit Saha ◽  
Christoph Schneider
Keyword(s):  
Quinone Methides ◽  
Acid Catalyzed ◽  
Enantioselective Addition

Lewis acid-catalyzed tandem cyclization of in situ generated o-quinone methides and arylsulfonyl hydrazides for a one-pot entry to 3-sulfonylbenzofurans

2019 ◽  
Vol 6 (24) ◽  
pp. 3929-3933 ◽  
Author(s):  
Fan-Xiao Meng ◽  
Ruo-Nan Wang ◽  
Hong-Li Huang ◽  
Shu-Wen Gong ◽  
Qian-Li Li ◽  
...  
Keyword(s):  
Lewis Acid ◽  
Quinone Methides ◽  
One Pot ◽  
Acid Catalyzed ◽  
Tandem Cyclization ◽  
First Time

Lewis acid-mediated one-pot tandem cyclization of o-QMs with arylsulfonyl hydrazides was described for the first time and the corresponding 3-sulfonylbenzofuran products were obtained in moderate to good yields.

Chiral phosphoric acid catalyzed enantioselective addition of thiols to in situ generated ketimines: Synthesis of N , S -ketals

2017 ◽  
Vol 58 (2) ◽  
pp. 145-151 ◽  
Author(s):  
Rajshekhar A. Unhale ◽  
Nagaraju Molleti ◽  
Nirmal K. Rana ◽  
Sivasankaran Dhanasekaran ◽  
Subhrajyoti Bhandary ◽  
...  
Keyword(s):  
Phosphoric Acid ◽  
Chiral Phosphoric Acid ◽  
Acid Catalyzed ◽  
Enantioselective Addition

Chiral phosphoric acid catalyzed asymmetric addition of naphthols to para-quinone methides

2016 ◽  
Vol 14 (24) ◽  
pp. 5751-5754 ◽  
Author(s):  
Yuk Fai Wong ◽  
Zhaobin Wang ◽  
Jianwei Sun
Keyword(s):  
Phosphoric Acid ◽  
Quinone Methides ◽  
Asymmetric Addition ◽  
Chiral Phosphoric Acid ◽  
Acid Catalyzed

An asymmetric addition of naphthols to in situ generated para-quinone methides catalyzed by a chiral phosphoric acid is described.

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