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.

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

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

Amide-Phosphonium Salt as Bifunctional Phase Transfer Catalyst for Asymmetric 1,6-Addition of Malonate Esters to para-Quinone Methides

2016 ◽  
Vol 81 (19) ◽  
pp. 9315-9325 ◽  
Author(s):  
Luo Ge ◽  
Xuehe Lu ◽  
Cang Cheng ◽  
Jie Chen ◽  
Weiguo Cao ◽  
...  
Keyword(s):  
Phosphonium Salt ◽  
Phase Transfer ◽  
Phase Transfer Catalyst ◽  
Quinone Methides

Organocatalytic Asymmetric Synthesis of Biologically Relevant 3,3- Dihydroxyphenyloxindoles via para-Quinone Methides Derived from Isatins

2021 ◽  
Vol 86 (8) ◽  
pp. 5489-5498
Author(s):  
Xiangshuo Qin ◽  
Guofeng Liu ◽  
Jigang Gao ◽  
Heng Zhang ◽  
Dongyang Sun ◽  
...  
Keyword(s):  
Asymmetric Synthesis ◽  
Quinone Methides ◽  
Biologically Relevant

An Organocatalytic Asymmetric Synthesis of Chiral β,β-Diaryl-α-amino Acids via Addition of Azlactones to In Situ Generated para -Quinone Methides

2018 ◽  
Vol 13 (17) ◽  
pp. 2440-2444 ◽  
Author(s):  
Jiyao Yan ◽  
Min Chen ◽  
Herman H-Y. Sung ◽  
Ian D. Williams ◽  
Jianwei Sun
Keyword(s):  
Amino Acids ◽  
Asymmetric Synthesis ◽  
Quinone Methides
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