An efficient approach towards three component coupling of one pot reaction for synthesis of functionalized benzopyrans

2006 ◽  
Vol 43 (6) ◽  
pp. 1691-1693 ◽  
Author(s):  
B. Sunil Kumar ◽  
N. Srinivasulu ◽  
R. H. Udupi ◽  
B. Rajitha ◽  
Y. Thirupathi Reddy ◽  
...  
Keyword(s):  
One Pot ◽  
Efficient Approach ◽  
Three Component Coupling

An Efficient Approach Towards Three Component Coupling of One Pot Reaction for Synthesis of Functionalized Benzopyrans.

ChemInform ◽  
2007 ◽  
Vol 38 (13) ◽  
Author(s):  
B. Sunil Kumar ◽  
N. Srinivasulu ◽  
R. H. Udupi ◽  
B. Rajitha ◽  
Y. Thirupathi Reddy ◽  
...  
Keyword(s):  
One Pot ◽  
Efficient Approach ◽  
Three Component Coupling

One-Pot Synthesis and Conformational Analysis of 6-Membered Cyclic Iodonium Salts

2020 ◽  
Author(s):  
Lucien Caspers ◽  
Julian Spils ◽  
Mattis Damrath ◽  
Enno Lork ◽  
Boris Nachtsheim
Keyword(s):  
Conformational Analysis ◽  
Bronsted Acids ◽  
One Pot ◽  
Benzyl Alcohols ◽  
Iodonium Salts ◽  
Efficient Approach ◽  
One Pot Synthesis ◽  
Diaryliodonium Salts

In this article we describe an efficient approach for the synthesis of cyclic diaryliodonium salts. The method is based on benzyl alcohols as starting materials and consists of an Friedel-Crafts-arylation/oxidation sequence. Besides a deep optimization, particluar focusing on the choice and ratios of the utilized Bronsted-acids and oxidants, we explore the substrate scope of this transformation. We also discuss an interesting isomerism of cyclic iodonium salts substituted with aliphatic substituents at the bridge head carbon. <br>

scholarly journals One-pot three-component synthesis of quinoxaline and phenazine ring systems using Fischer carbene complexes

2010 ◽  
Vol 6 ◽  
Author(s):  
Priyabrata Roy ◽  
Binay Krishna Ghorai
Keyword(s):  
Diels Alder ◽  
Fischer Carbene Complexes ◽  
One Pot ◽  
Carbene Complexes ◽  
Ring Systems ◽  
First Report ◽  
Fischer Carbene ◽  
Carbonyl Derivatives ◽  
Transient Intermediates ◽  
Three Component Coupling

One-pot three-component coupling ofo-alkynylheteroaryl carbonyl derivatives with Fischer carbene complexes and dienophiles leading to the synthesis of quinoxaline and phenazine ring systems has been investigated. This involves the generation of furo[3,4-b]pyrazine and furo[3,4-b]quinoxaline as transient intermediates, which were trapped with Diels–Alder dienophiles. This is the first report on furo[3,4-b]pyrazine intermediates.

An Efficient and Convenient Approach to the Synthesis of Benzopyrans by a Three-Component Coupling of One-Pot Reaction

Synlett ◽  
2003 ◽  
pp. 2001-2004 ◽  
Author(s):  
Tong-Shou Jin ◽  
Jin-Chong Xiao ◽  
Su-Juan Wang ◽  
Tong-Shuang Li ◽  
Xin-Ru Song
Keyword(s):  
One Pot ◽  
Convenient Approach ◽  
Three Component Coupling

ChemInform Abstract: Three-Component Coupling of Acylphosphonates and Two Carbonyl Compounds Promoted by Low-Valent Samariums: One-Pot Synthesis of β-Hydroxyphosphonates.

ChemInform ◽  
2010 ◽  
Vol 31 (18) ◽  
pp. no-no
Author(s):  
Ken Takaki ◽  
Yuichiro Itono ◽  
Akihiro Nagafuji ◽  
Yoji Naito ◽  
Tetsuya Shishido ◽  
...  
Keyword(s):  
Carbonyl Compounds ◽  
One Pot ◽  
One Pot Synthesis ◽  
Low Valent ◽  
Three Component Coupling

One-pot Three-component Coupling Access to 1,2-Dihydropyrrolo[1,2-a]pyrazine-1-phosphonates: Multi-Functionalization of Pyrazine Unit

2021 ◽  
Author(s):  
Jeong Hwa Lee ◽  
Seok Hyun Yoon ◽  
Seonghyeon Nam ◽  
Ikyon Kim
Keyword(s):  
Chemical Space ◽  
One Pot ◽  
Environment Friendly ◽  
Pyrrole Derivative ◽  
Three Component Coupling

A new pyrrolo[1,2-a]pyrazine chemical space with a poly-substituted pyrazine unit was readily accessed by Sc(OTf)3-catalyzed one-pot three-component coupling of pyrrole derivative, amine, and trialkylphosphite under environment-friendly conditions. Formation of multiple...

One-pot Synthesis of 3-Substituted-3-Hydroxyindolin-2-ones: Three Component Coupling of N-Protected isatin, Aryne Precursor and 1, 3-Cyclodione under Metal-free Conditions

2021 ◽  
Author(s):  
Hemanta Hazarika ◽  
Babulal Das ◽  
Kangkana Chutia ◽  
Pranjal Gogoi
Keyword(s):  
One Pot ◽  
Metal Free ◽  
One Pot Synthesis ◽  
Three Components ◽  
Three Component Coupling

An aryne-based synthetic protocol has been developed for the synthesis of 3-substituted-3-hydroxy-indolin-2-ones. A wide variety of 3-hydroxyindolin-2-ones were synthetized in good yields under metal-free conditions via three components coupling of...

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