ChemInform Abstract: Mechanism of the Diels-Alder Reaction of Enal Dienophiles. Competitive Reactivity and ab initio Calculations Using a Transannular Probe.

ChemInform ◽  
2010 ◽  
Vol 30 (3) ◽  
pp. no-no
Author(s):  
Y. L. DORY ◽  
D. G. HALL ◽  
P. DESLONGCHAMPS
Keyword(s):  
Ab Initio Calculations ◽  
Ab Initio ◽  
Alder Reaction ◽  
Diels Alder ◽  
Diels Alder Reaction

Ab initio and semiempirical corroboration of the observed stereoselectivity in the transannular Diels-Alder reaction leading to steroids

Tetrahedron ◽  
1998 ◽  
Vol 54 (34) ◽  
pp. 10089-10110 ◽  
Author(s):  
Michel Couturier ◽  
Yves L Dory ◽  
Daniel Fortin ◽  
Alain Rouillard ◽  
Pierre Deslongchamps
Keyword(s):  
Ab Initio ◽  
Alder Reaction ◽  
Diels Alder ◽  
Diels Alder Reaction

Ab initio Cs transition state for the Diels-Alder reaction of acetylene and butadiene

1990 ◽  
Vol 55 (12) ◽  
pp. 3804-3807 ◽  
Author(s):  
James M. Coxon ◽  
Stephen T. Grice ◽  
Robert G. A. R. Maclagan ◽  
D. Quentin McDonald
Keyword(s):  
Transition State ◽  
Ab Initio ◽  
Alder Reaction ◽  
Diels Alder ◽  
Diels Alder Reaction

The Syntheses and Crystal-Structures of Decahydro-5,14:6,13:7,12-Trimethanopentacene and Decahydro-5,14-7,12-Dimethanopentacene: Two Useful Molecules for Investigating Laticyclic Hyperconjugation

1986 ◽  
Vol 39 (10) ◽  
pp. 1587 ◽  
Author(s):  
DC Craig ◽  
MN Paddonrow ◽  
HK Patney
Keyword(s):  
Crystal Structure ◽  
Ab Initio Calculations ◽  
Crystal Structures ◽  
Reductive Dechlorination ◽  
Photoelectron Spectrum ◽  
Alder Reaction ◽  
Diels Alder ◽  
Basis Set ◽  
Orbital Interactions ◽  
Diels Alder Reaction

The syntheses of decahydro-5,14:6,13:7,12-trimethanopentacene and decahydro-5,14:7,12-dimethanopentacene are described (see Schemes 1 and 2 respectively). Diels -Alder reaction of diene (10) with two equivalents of tetrachlorothiophen 1,1-dioxide (11) gave the adduct (12), which was aromatized to (13) through treatment with base. Reductive dechlorination (Na/ PriOH ) of (13) gave (6). A similar set of reactions performed on (17), itself prepared from cyclohexa-1,4-diene and two equivalents of hexachlorocyclopentadiene (15), gave (7). The crystal structures of (6) and (7) were determined. An interesting feature of the structure of (7) is the slight endo pyramidalization (by c. 3°) of the trigonal carbon atoms C 4a, C 7a, C 11a and C 14a. Model ab initio calculations (STO-3G basis set) on complexes (27) and (28), whose geometries were culled from the crystal structure of (6), indicate that significant laticyclic hyperconjugative interactions (c. 0.3 eV ) are mainly responsible for causing the observed splitting between the πs+πs and πs-πs levels in the photoelectron spectrum of (6). Orbital interactions through the pair of six connecting sigma bonds (OIT-6-B) in (6) have a negligible effect (c. 0.08 eV ) on these levels. In agreement with prediction, laticyclic hyperconjugation does not affect the πa+πa and πa-πa levels.

Ab Initio and DFT Study of the Influence of the Allene Group on the Diels–Alder Reaction

2004 ◽  
Vol 15 (4) ◽  
pp. 323-326 ◽  
Author(s):  
M. Luisa Ferreiro ◽  
Jesús Rodríguez-Otero ◽  
Enrique M. Cabaleiro-Lago
Keyword(s):  
Ab Initio ◽  
Alder Reaction ◽  
Diels Alder ◽  
Dft Study ◽  
Diels Alder Reaction ◽  
Ab Initio And Dft

An ab Initio Study of Facial Selectivity in the Diels−Alder Reaction

1998 ◽  
Vol 63 (1) ◽  
pp. 105-112 ◽  
Author(s):  
James D. Xidos ◽  
Raymond A. Poirier ◽  
Cory C. Pye ◽  
D. Jean Burnell
Keyword(s):  
Ab Initio ◽  
Alder Reaction ◽  
Diels Alder ◽  
Ab Initio Study ◽  
Diels Alder Reaction ◽  
Facial Selectivity

Electronic factors influencing the activation barrier of the Diels-Alder reaction. An ab initio study

1989 ◽  
Vol 54 (12) ◽  
pp. 2931-2935 ◽  
Author(s):  
Robert D. Bach ◽  
Joseph J. W. McDouall ◽  
H. Bernhard Schlegel ◽  
Gregory J. Wolber
Keyword(s):  
Ab Initio ◽  
Activation Barrier ◽  
Alder Reaction ◽  
Diels Alder ◽  
Ab Initio Study ◽  
Diels Alder Reaction ◽  
Factors Influencing

Ab Initio Studies of the Radical Cation Diels−Alder Reaction

1999 ◽  
Vol 121 (28) ◽  
pp. 6730-6736 ◽  
Author(s):  
Udo Haberl ◽  
Olaf Wiest ◽  
Eberhard Steckhan
Keyword(s):  
Ab Initio ◽  
Radical Cation ◽  
Alder Reaction ◽  
Diels Alder ◽  
Diels Alder Reaction
Sign in / Sign up

Export Citation Format

Share Document