Fused heterocycles. Part 3. Synthesis and stereochemistry of benzopyrano and benzothiapyrano-[4,3-c]pyrazoles

1989 ◽  
pp. 319-323 ◽  
Author(s):  
Gábor Tóth ◽  
Áron Szöllösy ◽  
Tamás Lóránd ◽  
Tibor Kónya ◽  
Dezsö Szabó ◽  
...  
Keyword(s):  
Fused Heterocycles

Aminocoumarins: A Privileged Precursor for the Synthesis of Fused Heterocycles

2019 ◽  
Vol 23 (9) ◽  
pp. 1045-1075 ◽  
Author(s):  
Saigal ◽  
Sumbulunnisan Shareef ◽  
Habibur Rahman ◽  
Md. Musawwer Khan
Keyword(s):  
Chemical Reactivity ◽  
Structural Systems ◽  
Natural Occurrence ◽  
Amino Group ◽  
Active Compounds ◽  
The Past ◽  
Fused Heterocycles

Aminocoumarins are one of the important core structural systems, present in several biologically and medicinally active compounds. Owing to its natural occurrence, potential pharmacological applications and remarkable versatility as a privileged precursor, several proficient synthetic protocols have been reported in the literature over the past years. The presence of an amino group and enamine carbon enhances its chemical reactivity and thus such functionality is repeatedly used for the construction of various fused and simple heterocycles. This review highlights the preparation of different aminocoumarins and their applications for the construction of a variety of five, six and eight membered fused heterocycles.

Synthesis of unsaturated 1,4-heteroatom-containing benzo-fused heterocycles using a sequential isomerization–ring-closing metathesis strategy

Tetrahedron ◽  
2009 ◽  
Vol 65 (51) ◽  
pp. 10650-10659 ◽  
Author(s):  
Garreth L. Morgans ◽  
E. Lindani Ngidi ◽  
Lee G. Madeley ◽  
Setshaba D. Khanye ◽  
Joseph P. Michael ◽  
...  
Keyword(s):  
Ring Closing Metathesis ◽  
Fused Heterocycles

Design, synthesis and anticancer activity of sulfenylated imidazo-fused heterocycles

2021 ◽  
Vol 49 ◽  
pp. 128307
Author(s):  
Ravi Chitrakar ◽  
Deepa Rawat ◽  
Ramakrishna Sistla ◽  
Lakshma Nayak Vadithe ◽  
Adimurthy Subbarayappa
Keyword(s):  
Anticancer Activity ◽  
Design Synthesis ◽  
Fused Heterocycles

syn-Selective Construction of Fused Heterocycles by Catalytic Reductive Tandem Functionalization of N-Heteroarenes

ACS Catalysis ◽  
2021 ◽  
pp. 9271-9278
Author(s):  
Jian Yang ◽  
He Zhao ◽  
Zhenda Tan ◽  
Liang Cao ◽  
Huanfeng Jiang ◽  
...  
Keyword(s):  
Fused Heterocycles

ChemInform Abstract: Asymmetric and Fused Heterocycles Based on [2.2]Paracyclophane

ChemInform ◽  
2009 ◽  
Vol 40 (50) ◽  
Author(s):  
Ashraf A. Aly ◽  
Alan B. Brown
Keyword(s):  
Fused Heterocycles

One-Pot Multiple Lithiation Processes of Fused Heterocycles

2014 ◽  
Vol 2014 (32) ◽  
pp. 7226-7231 ◽  
Author(s):  
Adeline Jasselin-Hinschberger ◽  
Corinne Comoy ◽  
Yves Fort
Keyword(s):  
One Pot ◽  
Fused Heterocycles

Synthesis of Novel Isoxazole Fused Heterocycles

2012 ◽  
Vol 42 (15) ◽  
pp. 2191-2200 ◽  
Author(s):  
P. Sarita Rajender ◽  
G. Sridevi ◽  
K. Kondal Reddy
Keyword(s):  
Fused Heterocycles
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