A Synthesis of a New-type Heterocyclic Compound by Using Diels-Alder Reaction of 2-Methylene-1,2-dihydropyridine Derivative

Heterocycles ◽  
1989 ◽  
Vol 28 (1) ◽  
pp. 51 ◽  
Author(s):  
Hiroshi Tomisawa ◽  
Hiroto Nakano ◽  
Hiroshi Hongo
2019 ◽  
Vol 15 ◽  
pp. 1304-1312 ◽  
Author(s):  
Qichao Zhang ◽  
Jian Lv ◽  
Sanzhong Luo

The combination of the trityl cation and a chiral weakly coordinating Fe(III)-based bisphosphate anion was used to develop a new type of a highly active carbocation Lewis acid catalyst. The stereocontrol potential of the chiral tritylium ion pair was demonstrated by its application in an enantioselective Diels–Alder reaction of anthracene.


1939 ◽  
Vol 61 (12) ◽  
pp. 3558-3560 ◽  
Author(s):  
H. R. Snyder ◽  
R. B. Hasbrouck ◽  
J. F. Richardson

2015 ◽  
Vol 51 (5) ◽  
pp. 496-499 ◽  
Author(s):  
Maxim A. Bastrakov ◽  
Alexey M. Starosotnikov ◽  
Vadim V. Kachala ◽  
Igor L. Dalinger ◽  
Svyatoslav A. Shevelev

Synlett ◽  
1989 ◽  
Vol 1989 (01) ◽  
pp. 30-32
Author(s):  
Thomas V. Lee ◽  
Alistair J. Leigh ◽  
Christopher B. Chapleo

2020 ◽  
Author(s):  
Radu Talmazan ◽  
Klaus R. Liedl ◽  
Bernhard Kräutler ◽  
Maren Podewitz

We analyze the mechanism of the topochemically controlled difunctionalization of C60 and anthracene, where an anthracene molecule is transferred from one C60 monoadduct to another one under exclusive formation of equal amounts of C60 and the difficult to make antipodal C60 bisadduct. Our herein disclosed dispersion corrected DFT studies show the anthracene transfer to take place in a synchronous retro Diels-Alder/Diels-Alder reaction: an anthracene molecule dissociates from one fullerene under formation of an intermediate, while already undergoing stabilizing interactions with both neighboring fullerenes, facilitating the reaction kinetically. In the intermediate, a planar anthracene molecule is sandwiched between two neighboring fullerenes and forms equally strong "double-decker" type pi-pi stacking interactions with both of these fullerenes. Analysis with the distorsion interaction model shows that the anthracene unit of the intermediate is almost planar with minimal distorsions. This analysis sheds light on the existence of noncovalent interactions engaging both faces of a planar polyunsaturated ring and two convex fullerene surfaces in an unprecedented 'inverted sandwich' structure. Hence, it sheds light on new strategies to design functional fullerene based materials.<br>


2016 ◽  
Vol 20 (22) ◽  
pp. 2421-2442 ◽  
Author(s):  
Kévin Cottet ◽  
Maria Kolympadi ◽  
Dean Markovic ◽  
Marie-Christine Lallemand

Sign in / Sign up

Export Citation Format

Share Document