A Powerful Chiral Phosphoric Acid Catalyst for Enantioselective Mukaiyama-Mannich Reactions

2016 ◽  
Vol 55 (31) ◽  
pp. 8970-8974 ◽  
Author(s):  
Fengtao Zhou ◽  
Hisashi Yamamoto
Keyword(s):  
Phosphoric Acid ◽  
Acid Catalyst ◽  
Mannich Reactions ◽  
Chiral Phosphoric Acid

The Highly Enantioselective Addition of Indoles toN-Acyl Imines with Use of a Chiral Phosphoric Acid Catalyst

2007 ◽  
Vol 9 (14) ◽  
pp. 2609-2611 ◽  
Author(s):  
Gerald B. Rowland ◽  
Emily B. Rowland ◽  
Yuxue Liang ◽  
Jason A. Perman ◽  
Jon C. Antilla
Keyword(s):  
Phosphoric Acid ◽  
Acid Catalyst ◽  
Chiral Phosphoric Acid ◽  
Enantioselective Addition

scholarly journals QM/MM study on the enantioselectivity of spiroacetalization catalysed by an imidodiphosphoric acid catalyst: how confinement works

2016 ◽  
Vol 14 (11) ◽  
pp. 3031-3039 ◽  
Author(s):  
Luis Simón ◽  
Robert S. Paton
Keyword(s):  
Phosphoric Acid ◽  
Acid Catalyst ◽  
Acid Catalysts ◽  
Chiral Phosphoric Acid

An explanation of why confined imidodiphosphoric acid catalyst succeeds where other chiral phosphoric acid catalysts fail.

Direct enantioselective Mannich reactions of α-azido cyclic ketones: asymmetric construction of chiral azides possessing an α-quaternary stereocenter

2020 ◽  
Vol 56 (1) ◽  
pp. 98-101 ◽  
Author(s):  
Xueqian Ye ◽  
Yongkai Pan ◽  
Xiaoyu Yang
Keyword(s):  
Phosphoric Acid ◽  
Asymmetric Synthesis ◽  
Cyclic Ketones ◽  
Mannich Reactions ◽  
Chiral Phosphoric Acid ◽  
Quaternary Stereocenter

Herein, we report the asymmetric synthesis of chiral azides possessing an α-quaternary stereocenter via chiral phosphoric acid catalysed direct enantioselective Mannich reactions of α-azido cyclic ketones with aldimines.

scholarly journals A chiral phosphoric acid catalyst for asymmetric construction of 1,3-dioxanes

2015 ◽  
Vol 51 (58) ◽  
pp. 11693-11696 ◽  
Author(s):  
Akira Matsumoto ◽  
Keisuke Asano ◽  
Seijiro Matsubara
Keyword(s):  
Phosphoric Acid ◽  
Michael Addition ◽  
Acid Catalyst ◽  
Chiral Phosphoric Acid

A chiral phosphoric acid catalyst enabled enantioselective 1,3-dioxane construction, useful for polyketide motif synthesis, via a hemiacetalization/intramolecular oxy-Michael addition cascade.

A Doubly Axially Chiral Phosphoric Acid Catalyst for the Asymmetric Tandem Oxyfluorination of Enamides

2012 ◽  
Vol 124 (38) ◽  
pp. 9822-9826 ◽  
Author(s):  
Takashi Honjo ◽  
Robert J. Phipps ◽  
Vivek Rauniyar ◽  
F. Dean Toste
Keyword(s):  
Phosphoric Acid ◽  
Acid Catalyst ◽  
Chiral Phosphoric Acid ◽  
Axially Chiral
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