scholarly journals Synthesis of upper rim-double-bridged calix[4]arenes bearing seven membered rings and related compounds

RSC Advances ◽  
2019 ◽  
Vol 9 (38) ◽  
pp. 22017-22030 ◽  
Author(s):  
M. Tlustý ◽  
V. Eigner ◽  
M. Babor ◽  
M. Kohout ◽  
P. Lhoták
Keyword(s):  
Chiral Recognition ◽  
Inherently Chiral ◽  
Upper Rim ◽  
Related Compounds

Calix[4]arenes bearing one or two bridges on the upper rim were prepared as novel inherently chiral derivatives potentially capable of chiral recognition.

Regioselective formation of the quinazoline moiety on the upper rim of calix[4]arene as a route to inherently chiral systems

2020 ◽  
Vol 44 (16) ◽  
pp. 6490-6500
Author(s):  
M. Tlustý ◽  
H. Dvořáková ◽  
J. Čejka ◽  
M. Kohout ◽  
P. Lhoták
Keyword(s):  
Inherently Chiral ◽  
Chiral Systems ◽  
Upper Rim ◽  
Inherently Chiral Calixarenes

N-acyl aminocalix[4]arenes were cyclized with nitriles to afford the expected quinazolines only in the case of para-substituted series. This strategy represents a new route to inherently chiral calixarenes potentially useful as fluorescent receptors.

25‐Propyloxy‐26,27‐dibenzoyloxy‐calix[4]arene as Precursor of Inherently Chiral Calixarenes with AB and ABC Substitution Patterns at the Upper Rim

2021 ◽  
Author(s):  
Oleksandr O. Trybrat ◽  
Oleksandr A. Yesypenko ◽  
Svitlana V. Shishkina ◽  
Eduard B. Rusanov ◽  
Yevgen A. Karpichev ◽  
...  
Keyword(s):  
Inherently Chiral ◽  
Upper Rim ◽  
Inherently Chiral Calixarenes

Inherently Chiral Resorcin[4]arenes with Urea and Amide Side Arms: Synthesis, Structure and Chiral Recognition

2013 ◽  
Vol 2013 (7) ◽  
pp. 1240-1245 ◽  
Author(s):  
Sebastian Wiegmann ◽  
Gaku Fukuhara ◽  
Beate Neumann ◽  
Hans-Georg Stammler ◽  
Yoshihisa Inoue ◽  
...  
Keyword(s):  
Chiral Recognition ◽  
Inherently Chiral

Ketone transformation as a pathway to inherently chiral rigidified calix[4]arenes

2020 ◽  
Vol 56 (84) ◽  
pp. 12773-12776
Author(s):  
Martin Tlustý ◽  
Dita Spálovská ◽  
Michal Kohout ◽  
Václav Eigner ◽  
Pavel Lhoták
Keyword(s):  
Carbonyl Group ◽  
Group Formation ◽  
Inherently Chiral ◽  
Novel Strategy ◽  
Upper Rim

A novel strategy for bridging the upper rim of calix[4]arenes consisting in carbonyl group formation and subsequent “extension” into a two-atom bridge is presented.

Azide Decomposition as a Pathway to Intramolecularly Upper Rim-Bridged Calix[4]arenes

Synthesis ◽  
2021 ◽  
Author(s):  
Martin Tlusty ◽  
Vaclav Eigner ◽  
Pavel Lhotak
Keyword(s):  
Thermal Decomposition ◽  
Single Atom ◽  
Indole Derivatives ◽  
Nmr Titration ◽  
Bridge Function ◽  
Inherently Chiral ◽  
Upper Rim

Proximally single-atom bridged calix[4]arenes possess a rigidified cavity and, thus, unusual complexation properties. Here, we report on the synthesis of the first such heteroatom-bridged compound: amine-bridged calix[4]arene. This compound, prepared by thermal decomposition of 4-azidocalix[4]arene, was obtained alongside very interesting rearranged inherently chiral 10H-azepino[1,2-a]indole derivatives. NMR titration confirmed the suitability of amine cavity for the complexation of methylamonnium cations; moreover, the -NH- bridge function enables its further derivatization.

Inherently Chiral Calix[5]arenes Incorporating an Axially Chiral Binaphthyl Moiety: Synthesis, Structures and Chiral Recognition

2014 ◽  
Vol 2015 (4) ◽  
pp. 765-774 ◽  
Author(s):  
Wen-Zhen Zhang ◽  
Ke Yang ◽  
Si-Zhe Li ◽  
Hui Ma ◽  
Jun Luo ◽  
...  
Keyword(s):  
Chiral Recognition ◽  
Axially Chiral ◽  
Inherently Chiral
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