Tandem [3 + 2] Cycloaddition/1,4-Addition Reaction of Azomethine Ylides and Aza-o-quinone Methides for Asymmetric Synthesis of Imidazolidines

2017 ◽  
Vol 19 (19) ◽  
pp. 5236-5239 ◽  
Author(s):  
Hao Jia ◽  
Honglei Liu ◽  
Zhenyan Guo ◽  
Jiaxing Huang ◽  
Hongchao Guo
Keyword(s):  
Asymmetric Synthesis ◽  
Addition Reaction ◽  
Azomethine Ylides ◽  
Quinone Methides

Asymmetric Synthesis of 1,2-Diamines bearing Tetrasubstituted Centers from Nonstabilized Azomethine Ylides and N-Sulfinylketimines under Brønsted Acid Catalysis

2015 ◽  
Vol 18 (1) ◽  
pp. 92-95 ◽  
Author(s):  
Cristina Izquierdo ◽  
Francisco Esteban ◽  
José Luis García Ruano ◽  
Alberto Fraile ◽  
José Alemán
Keyword(s):  
Asymmetric Synthesis ◽  
Acid Catalysis ◽  
Azomethine Ylides ◽  
Bronsted Acid ◽  
Brønsted Acid ◽  
Brönsted Acid ◽  
Bronsted Acid Catalysis

scholarly journals Asymmetric Synthesis of 2,3-Dihydrobenzofurans by a [4+1] Annulation Between Ammonium Ylides and In Situ Generated o -Quinone Methides

2017 ◽  
Vol 23 (21) ◽  
pp. 5137-5142 ◽  
Author(s):  
Nicole Meisinger ◽  
Lukas Roiser ◽  
Uwe Monkowius ◽  
Markus Himmelsbach ◽  
Raphaël Robiette ◽  
...  
Keyword(s):  
Asymmetric Synthesis ◽  
Quinone Methides

Asymmetric synthesis of highly functionalized spirothiazolidinone tetrahydroquinolines via a squaramide-catalyzed cascade reaction

2018 ◽  
Vol 16 (48) ◽  
pp. 9390-9401 ◽  
Author(s):  
Yong-Xing Song ◽  
Da-Ming Du
Keyword(s):  
Asymmetric Synthesis ◽  
Michael Addition ◽  
Addition Reaction ◽  
Cascade Reaction ◽  
Michael Addition Reaction

A bifunctional squaramide-catalyzed asymmetric cascade aza-Michael/Michael addition reaction for the synthesis of chiral spirothiazolidinone tetrahydroquinolines with three contiguous stereocenters has been developed.

Organocatalytic Enantioselective Cycloaddition of o ‐Quinone Methides with Oxazolones: Asymmetric Synthesis of Dihydrocoumarins

2020 ◽  
Vol 5 (42) ◽  
pp. 13259-13262
Author(s):  
Kyeong Seop Kim ◽  
Jihoon Jang ◽  
Dae Young Kim
Keyword(s):  
Asymmetric Synthesis ◽  
Quinone Methides

Asymmetric synthesis of spiro-structural 2,3-dihydrobenzofurans via the bifunctional phosphonium salt-promoted [4 + 1] cyclization of ortho-quinone methides with α-bromoketones

2019 ◽  
Vol 6 (22) ◽  
pp. 3799-3803 ◽  
Author(s):  
Song Zhang ◽  
Xiaojun Yu ◽  
Jianke Pan ◽  
Chunhui Jiang ◽  
Hongsu Zhang ◽  
...  
Keyword(s):  
Asymmetric Synthesis ◽  
Phosphonium Salt ◽  
Quinone Methides

A practical and scalable method for highly stereoselective construction of spiro-2,3-dihydrobenzofurans via cyclization of ortho-quinone methides and α-bromoketones by bifunctional phosphonium salt catalysis was developed.

Organocatalytic Enantioselective [3+2] Cycloaddition of Azomethine Ylides with 2,4‐Dienals: Construction of Remote Stereogenic Centers via 1,6‐Addition Reaction

2020 ◽  
Vol 362 (24) ◽  
pp. 5716-5720
Author(s):  
Hui Jiang ◽  
Leijie Zhou ◽  
Biming Mao ◽  
Chunhao Yuan ◽  
Wei Wang ◽  
...  
Keyword(s):  
Addition Reaction ◽  
Azomethine Ylides ◽  
Stereogenic Centers

Diastereoselective synthesis of pitavastatin calcium via bismuth-catalyzed two-component hemiacetal/oxa-Michael addition reaction

2015 ◽  
Vol 13 (38) ◽  
pp. 9813-9819 ◽  
Author(s):  
Fangjun Xiong ◽  
Haifeng Wang ◽  
Lingjie Yan ◽  
Lingjun Xu ◽  
Yuan Tao ◽  
...  
Keyword(s):  
Asymmetric Synthesis ◽  
Michael Addition ◽  
Addition Reaction ◽  
Diastereoselective Synthesis ◽  
Michael Addition Reaction ◽  
Two Component ◽  
Pitavastatin Calcium

An efficient and concise asymmetric synthesis of pitavastatin calcium (1) starting from commercially available (S)-epichlorohydrin is described.

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