Theophylline as the catalyst for the diastereoselective synthesis of trans-1,2-dihydrobenzo[a]furo[2,3-c]phenazines in water

RSC Advances ◽  
2016 ◽  
Vol 6 (87) ◽  
pp. 84326-84333 ◽  
Author(s):  
Afshin Yazdani-Elah-Abadi ◽  
Razieh Mohebat ◽  
Malek-Taher Maghsoodlou
Keyword(s):  
Environmentally Benign ◽  
Domino Reaction ◽  
Diastereoselective Synthesis ◽  
Reaction In Water ◽  
Pyridinium Ylide

Theophylline-catalyzed efficient and environmentally benign procedure for the diastereoselective synthesis of trans-1,2-dihydrobenzo[a]furo[2,3-c]phenazines with pyridinium ylide assisted domino reaction in water.

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.

An environmentally benign cascade reaction of chromone-3-carboxaldehydes with ethyl 2-(pyridine-2-yl)acetate derivatives for highly site-selective synthesis of quinolizines and quinolizinium salts in water

2020 ◽  
Vol 22 (20) ◽  
pp. 6943-6953 ◽  
Author(s):  
Li Chen ◽  
Rong Huang ◽  
Kun Li ◽  
Xing-Han Yun ◽  
Chang-Long Yang ◽  
...  
Keyword(s):  
Cascade Reaction ◽  
Environmentally Benign ◽  
Selective Synthesis ◽  
Site Selective ◽  
Reaction In Water

A protocol for the synthesis of quinolizines from ethyl 2-(pyridine-2-yl)acetates via an unprecedented cascade reaction in water was constructed.

Construction of benzothiophene fused pyrrolidone in water via a catalyst-free process and a mechanism study

2020 ◽  
Vol 22 (20) ◽  
pp. 6798-6803 ◽  
Author(s):  
Jinhui Shen ◽  
Aimin Yu ◽  
Lei Zhang ◽  
Xiangtai Meng
Keyword(s):  
Environmentally Benign ◽  
Domino Reaction ◽  
Mechanism Study ◽  
Catalyst Free ◽  
Free Process

A novel three-component domino reaction towards benzothiophene fused pyrrolidone derivatives was developed in an environmentally benign manner.

ChemInform Abstract: Cs2.5H0.5PW12O40 Catalyzed Diastereoselective Synthesis of β-Amino Ketones via Three Component Mannich-Type Reaction in Water.

ChemInform ◽  
2010 ◽  
Vol 41 (50) ◽  
pp. no-no
Author(s):  
Ezzat Rafiee ◽  
Sara Eavani ◽  
Fereshte Khajooei Nejad ◽  
Mohammad Joshaghani
Keyword(s):  
Diastereoselective Synthesis ◽  
Type Reaction ◽  
Reaction In Water

Environmentally benign diastereoselective synthesis of granatane and tropane aldol derivatives

RSC Advances ◽  
2014 ◽  
Vol 4 (56) ◽  
pp. 29668 ◽  
Author(s):  
Aneta Nodzewska ◽  
Agnieszka Bokina ◽  
Katarzyna Romanowska ◽  
Ryszard Lazny
Keyword(s):  
Environmentally Benign ◽  
Diastereoselective Synthesis

scholarly journals Stereoselective synthesis of chromane derivatives via a domino reaction catalyzed by modularly designed organocatalysts

2019 ◽  
Vol 17 (1) ◽  
pp. 151-155 ◽  
Author(s):  
Satish Jakkampudi ◽  
Ramarao Parella ◽  
John C.-G. Zhao
Keyword(s):  
Stereoselective Synthesis ◽  
Domino Reaction ◽  
Diastereoselective Synthesis

A highly enantio- and diastereoselective synthesis of functionalized chroman-2-ones and chromanes was achieved.

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