An efficient approach for the synthesis of novel series of 1,3-dihydrospiro[indene-2,6ʹ-[1,3]thiazine] derivatives

2021 ◽  
Author(s):  
Sara M. Mostafa ◽  
Ashraf A. Aly ◽  
Stefan Bräse ◽  
Asmaa H. Mohamed
Keyword(s):  
Efficient Approach

An efficient approach to lattice-based fixed-rate entropy-coded vector quantization

2003 ◽  
Vol 14 (2) ◽  
pp. 141-147
Author(s):  
Sasan Nikneshan ◽  
And Amir Keyvan Khandani
Keyword(s):  
Vector Quantization ◽  
Fixed Rate ◽  
Efficient Approach

Efficient approach for analysis of unsteady viscous flows in turbomachines

AIAA Journal ◽  
1998 ◽  
Vol 36 ◽  
pp. 2005-2012
Author(s):  
L. He ◽  
W. Ning
Keyword(s):  
Viscous Flows ◽  
Efficient Approach

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>

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