Diastereoselective Synthesis of 2-(1,3-Dioxolanes-4-yl)-4H -pyran-4-ones from 2-Diazo-3,5-dioxo-6-ynoates (sulfones) and Aldehydes Based on Tandem Cyclization-Cycloaddition Strategy

2019 ◽  
Vol 2019 (24) ◽  
pp. 3979-3986 ◽  
Author(s):  
Jianfang Zhang ◽  
Guisheng Deng ◽  
Jianbo Wang
Keyword(s):  
Diastereoselective Synthesis ◽  
Tandem Cyclization

Gold-Catalyzed Intramolecular Tandem Cyclization of Indole-Ynamides: Diastereoselective Synthesis of Spirocyclic Pyrrolidinoindolines

2015 ◽  
Vol 11 (3) ◽  
pp. 371-375 ◽  
Author(s):  
Nan Zheng ◽  
Yuan-Yuan Chang ◽  
Li-Jie Zhang ◽  
Jian-Xian Gong ◽  
Zhen Yang
Keyword(s):  
Diastereoselective Synthesis ◽  
Tandem Cyclization

Diastereoselective synthesis of cyclohexadienes via tandem cyclization strategies

2018 ◽  
Vol 23 (3) ◽  
pp. 651-656
Author(s):  
Abdolali Alizadeh ◽  
Akram Bagherinejad ◽  
Fahimeh Bayat ◽  
Seyed Yasub Hosseini ◽  
Long-Guan Zhu
Keyword(s):  
Diastereoselective Synthesis ◽  
Tandem Cyclization

Diastereoselective Synthesis of (±)-Ambrox by Titanium(III)-Catalyzed Radical Tandem Cyclization

Synlett ◽  
2015 ◽  
Vol 27 (03) ◽  
pp. 369-374 ◽  
Author(s):  
Antonio Rosales ◽  
J. Oltra ◽  
L. Foley ◽  
Natalia Padial ◽  
Juan Muñoz-Bascón ◽  
...  
Keyword(s):  
Diastereoselective Synthesis ◽  
Tandem Cyclization

Diastereoselective synthesis ofcis-1,3-disubstituted isoindolinesviaa highly site-selective tandem cyclization reaction

2018 ◽  
Vol 5 (12) ◽  
pp. 1950-1956 ◽  
Author(s):  
Siyang Xing ◽  
Hong Cui ◽  
Jiajing Qin ◽  
Nan Gu ◽  
Bowei Zhang ◽  
...  
Keyword(s):  
Michael Addition ◽  
Ring Opening ◽  
Cyclization Reaction ◽  
Tandem Reaction ◽  
Diastereoselective Synthesis ◽  
Tandem Cyclization ◽  
Site Selective

A highly site-selective tandem reaction involving regioselective ring opening of aziridines and Michael addition of electron-deficient alkenes has been described.

Naturally Occurring Organic Acid-catalyzed Facile Diastereoselective Synthesis of Biologically Active (E)-3-(arylimino)indolin-2-one Derivatives in Water at Room Temperature

2019 ◽  
Vol 23 (16) ◽  
pp. 1778-1788 ◽  
Author(s):  
Gurpreet Kaur ◽  
Arvind Singh ◽  
Kiran Bala ◽  
Mamta Devi ◽  
Anjana Kumari ◽  
...  
Keyword(s):  
Room Temperature ◽  
Biologically Active ◽  
Environmentally Benign ◽  
Diastereoselective Synthesis ◽  
Substituted Anilines ◽  
Reaction Conditions ◽  
Naturally Occurring ◽  
Acid Catalyzed ◽  
Reaction Media ◽  
Column Chromatographic

A simple, straightforward and efficient method has been developed for the synthesis of (E)-3-(arylimino)indolin-2-one derivatives and (E)-2-((4-methoxyphenyl)imino)- acenaphthylen-1(2H)-one. The synthesis of these biologically-significant scaffolds was achieved from the reactions of various substituted anilines and isatins or acenaphthaquinone, respectively, using commercially available, environmentally benign and naturally occurring organic acids such as mandelic acid or itaconic acid as catalyst in aqueous medium at room temperature. Mild reaction conditions, energy efficiency, good to excellent yields, environmentally benign conditions, easy isolation of products, no need of column chromatographic separation and the reusability of reaction media are some of the significant features of the present protocol.

Diastereoselective Synthesis of Novel Optically Active Five Membered O- and N-heterocyclic Compounds

2012 ◽  
Vol 9 (2) ◽  
pp. 81-88 ◽  
Author(s):  
Ervin Kovacs ◽  
Ferenc Farkas ◽  
Angelika Thurner ◽  
Aron Szollosy ◽  
Ferenc Faigl
Keyword(s):  
Heterocyclic Compounds ◽  
Optically Active ◽  
Diastereoselective Synthesis
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