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

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.

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.

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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