ChemInform Abstract: [2 + 1] Cycloaddition Reactions of a 1-Seleno-2-silylethene to 2-Sulfonylacrylates: Stereoselective Synthesis of Sulfone-Substituted Cyclopropanes.

ChemInform ◽  
2010 ◽  
Vol 31 (14) ◽  
pp. no-no
Author(s):  
Shoko Yamazaki ◽  
Yuichiro Yanase ◽  
Etsuko Tanigawa ◽  
Shinichi Yamabe ◽  
Hatsue Tamura
Keyword(s):  
Stereoselective Synthesis ◽  
Cycloaddition Reactions ◽  
Substituted Cyclopropanes

[2 + 1] Cycloaddition Reactions of a 1-Seleno-2-silylethene to 2-Sulfonylacrylates:  Stereoselective Synthesis of Sulfone-Substituted Cyclopropanes

1999 ◽  
Vol 64 (26) ◽  
pp. 9521-9528 ◽  
Author(s):  
Shoko Yamazaki ◽  
Yuichiro Yanase ◽  
Etsuko Tanigawa ◽  
Shinichi Yamabe ◽  
Hatsue Tamura
Keyword(s):  
Stereoselective Synthesis ◽  
Cycloaddition Reactions ◽  
Substituted Cyclopropanes

Enantioselective Multi-Component Cyclopropane Synthesis Enabled by Cu-Catalyzed Cyclopropene Carbometallation with Organoboron Reagent

2018 ◽  
Author(s):  
Zhanyu Li ◽  
Mengru Zhang ◽  
Yu Zhang ◽  
Shuang Liu ◽  
Jinbo Zhao ◽  
...  
Keyword(s):  
Carbon Source ◽  
Stereoselective Synthesis ◽  
Organometallic Reagents ◽  
Preliminary Results ◽  
Quaternary Center ◽  
Chiral Centers ◽  
Substituted Cyclopropanes ◽  
Proof Of Principle

Deployment of organoboron in lieu of the strongly basic <br>organometallic reagents as carbon source in Cu-catalyzed <br>cyclopropene carbometallation opens unprecedented three-<br>component reactivity for stereoselective synthesis of poly-substituted cyclopropanes. A proof-of-principle demonstration of this novel carbometallation strategy is presented herein for a highly convergent access to poly-substituted aminocyclopropane framework via <br>carboamination. Preliminary results on asymmetric desymmetrization with commercial bisphosphine ligands attained high levels of enantioselection, offering a straightforward access to enantioenriched aminocyclopropanes bearing all-three chiral centers, including an all-carbon quaternary center. This strategy may underpin a host of novel synthetic protocols for poly-substituted cyclopropanes. <br>

ChemInform Abstract: Lewis Acid Promoted Hetero [2 + 2] Cycloaddition Reactions of Aldehydes with 10-Propynyl-9(10H)-acridone. A Highly Stereoselective Synthesis of Acrylic Acid Derivatives and 1,3-Dienes Using an Electron Deficient Variant of Ynamine.

ChemInform ◽  
2010 ◽  
Vol 31 (3) ◽  
pp. no-no
Author(s):  
Richard P. Hsung ◽  
Craig A. Zificsak ◽  
Lin-Li Wei ◽  
Christopher J. Douglas ◽  
Hui Xiong ◽  
...  
Keyword(s):  
Acrylic Acid ◽  
Lewis Acid ◽  
Stereoselective Synthesis ◽  
Cycloaddition Reactions

Dearomative Indole [5+2] Cycloaddition Reactions: Stereoselective Synthesis of Highly Functionalized Cyclohepta[b]indoles

2014 ◽  
Vol 126 (41) ◽  
pp. 11231-11235 ◽  
Author(s):  
Guangjian Mei ◽  
Hao Yuan ◽  
Yueqing Gu ◽  
Wei Chen ◽  
Lung Wa Chung ◽  
...  
Keyword(s):  
Stereoselective Synthesis ◽  
Cycloaddition Reactions

Stereoselective Synthesis of Highly Substituted Cyclopropanes

Synfacts ◽  
2008 ◽  
Vol 2008 (05) ◽  
pp. 0504-0504
Keyword(s):  
Stereoselective Synthesis ◽  
Substituted Cyclopropanes

ChemInform Abstract: Stereoselective Synthesis of Isoxazole and Pyrazole Annulated Sultams via Intramolecular 1,3-Dipolar Cycloaddition Reactions.

ChemInform ◽  
2010 ◽  
Vol 29 (7) ◽  
pp. no-no
Author(s):  
U. CHIACCHIO ◽  
A. CORSARO ◽  
G. GUMINA ◽  
V. PISTARA ◽  
A. RESCIFINA ◽  
...  
Keyword(s):  
Stereoselective Synthesis ◽  
Dipolar Cycloaddition ◽  
Cycloaddition Reactions

ChemInform Abstract: A Short and Stereoselective Synthesis of Highly Substituted Cyclopropanes from α,β-Unsaturated Carbonyl Compounds with Dichloromethyl p-Tolyl Sulfoxide.

ChemInform ◽  
2008 ◽  
Vol 39 (43) ◽  
Author(s):  
Toshifumi Miyagawa ◽  
Toshinori Tatenuma ◽  
Makoto Tadokoro ◽  
Tsuyoshi Satoh
Keyword(s):  
Carbonyl Compounds ◽  
Stereoselective Synthesis ◽  
Substituted Cyclopropanes
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