2H-Azirine 3-Phosphonates:  A New Class of Chiral Iminodienophiles. Asymmetric Synthesis of Quaternary Piperidine Phosphonates

2002 ◽  
Vol 4 (4) ◽  
pp. 655-658 ◽  
Author(s):  
Franklin A. Davis ◽  
Yongzhong Wu ◽  
Hongxing Yan ◽  
Kavirayani R. Prasad ◽  
William McCoull
Keyword(s):  
Asymmetric Synthesis ◽  
New Class

ChemInform Abstract: Transition Metal Complexes. A New Class of Catalysts for the Asymmetric Synthesis of α-Amino Acids by Phase-Transfer Alkylation.

ChemInform ◽  
2010 ◽  
Vol 23 (6) ◽  
pp. no-no
Author(s):  
YU. N. BELOKON' ◽  
V. I. MALEEV ◽  
S. O. VIDENSKAYA ◽  
M. B. SAPOROVSKAYA ◽  
V. A. TSYRYAPKIN ◽  
...  
Keyword(s):  
Amino Acids ◽  
Transition Metal ◽  
Metal Complexes ◽  
Asymmetric Synthesis ◽  
Transition Metal Complexes ◽  
Phase Transfer ◽  
New Class

A Highly Stereoselective Synthesis of Glycidic Amides Based on a New Class of Chiral Sulfonium Salts: Applications in Asymmetric Synthesis

2012 ◽  
Vol 18 (47) ◽  
pp. 15190-15201 ◽  
Author(s):  
Francisco Sarabia ◽  
Carlos Vivar-García ◽  
Miguel García-Castro ◽  
Cristina García-Ruiz ◽  
Francisca Martín-Gálvez ◽  
...  
Keyword(s):  
Asymmetric Synthesis ◽  
Stereoselective Synthesis ◽  
Sulfonium Salts ◽  
New Class

Asymmetric Synthesis of Isoxazole and Trifluoromethyl‐Containing 3,2’‐Pyrrolidinyl Dispirooxindoles via Squaramide‐Catalysed [3 + 2] Cycloaddition Reactions

2022 ◽  
Author(s):  
Tong-Hao Li ◽  
Da-Ming Du
Keyword(s):  
Asymmetric Synthesis ◽  
Cycloaddition Reactions ◽  
New Class ◽  
Highly Efficient

A highly efficient squaramide‐catalysed asymmetric domino Michael/Mannich [3 + 2] cycloaddition of 3‐methyl‐4‐nitro‐5‐ isatylidenyl‐isoxazoles and N‐2,2,2‐trifluoroethylisatin ketimines was developed. A new class of complex and skeletondiversified isoxazole and trifluoromethyl‐containing 3,2’‐pyrrolidinyl...

ChemInform Abstract: 2H-Azirine 3-Phosphonates: A New Class of Chiral Iminodienophiles. Asymmetric Synthesis of Quaternary Piperidine Phosphonates.

ChemInform ◽  
2010 ◽  
Vol 33 (26) ◽  
pp. no-no
Author(s):  
Franklin A. Davis ◽  
Yongzhong Wu ◽  
Hongxing Yan ◽  
Kavirayani R. Prasad ◽  
William McCoull
Keyword(s):  
Asymmetric Synthesis ◽  
New Class

ChemInform Abstract: A Highly Stereoselective Synthesis of Glycidic Amides Based on a New Class of Chiral Sulfonium Salts: Applications in Asymmetric Synthesis.

ChemInform ◽  
2013 ◽  
Vol 44 (16) ◽  
pp. no-no
Author(s):  
Francisco Sarabia ◽  
Carlos Vivar-Garcia ◽  
Miguel Garcia-Castro ◽  
Cristina Garcia-Ruiz ◽  
Francisca Martin-Galvez ◽  
...  
Keyword(s):  
Asymmetric Synthesis ◽  
Stereoselective Synthesis ◽  
Sulfonium Salts ◽  
New Class

scholarly journals Synthesis, Characterization and Biological Activate 5-(Hydroxymethyl) Pyrrolidin-2-One at Room Temperature

2021 ◽  
pp. 10-15
Author(s):  
Veerappan Jeyachandran
Keyword(s):  
Respiratory Failure ◽  
Asymmetric Synthesis ◽  
Mild Condition ◽  
Building Block ◽  
Room Temperature ◽  
Senile Dementia ◽  
Antihypertensive Activity ◽  
Biological Processes ◽  
New Class ◽  
New Compounds

<p>A new class of chiral pyrrolidinone was synthesized from (5S)-5-[(trityloxy)methyl] pyrrolidin-2-one (6) (Schemes 1 and 2). The synthetic design followed led to the insertion of various substituents at 1 and 5 of the pyrrolidinone moiety. Some of them possess two or three stereo centers, here configuration was retained under the mild condition. The new compounds also carry an imidazole moiety, which, along with the 2-pyrrolidinone template, may prove pivotal to several biological processes. The chiral pyrrolidinone (R) ring is incorporatedin various compounds with biological and pharmaceutical activities [1]. some of them are well known medicines, e.g., doxapram for patients with respiratory failure,piracetam for patients with Alzheimer’s seizures, and senile dementia, concussion and other neurological problems [2,3]. The properties and applications of pyroglutamic acid as a versatile building block in asymmetric synthesis has extensively been reviewed in the literature[4,5]. Some of them exhibited anti-inflammatory and antihypertensive activity [6,7]</p>

C2-symmetric bis(aziridines): A new class of chiral ligands for transition metal-mediated asymmetric synthesis

1994 ◽  
Vol 35 (26) ◽  
pp. 4631-4634 ◽  
Author(s):  
David Tanner ◽  
Pher G. Andersson ◽  
Adrian Harden ◽  
Peter Somfai
Keyword(s):  
Transition Metal ◽  
Asymmetric Synthesis ◽  
Chiral Ligands ◽  
New Class

A new class of recoverable chiral sulphoxide: Application to the asymmetric synthesis of β-hydroxy esters.

1992 ◽  
Vol 33 (37) ◽  
pp. 5427-5430 ◽  
Author(s):  
Martin Wills ◽  
Roger J. Butlin ◽  
Ian D. Linney
Keyword(s):  
Asymmetric Synthesis ◽  
New Class ◽  
Hydroxy Esters
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