## Abstract The electrocyclization of 4‐substituted 3‐silyloxy‐2‐azadienes to β‐lactams was studied at the MP2/6‐31G\* level of theory and the effect of the substituents on the reactivity of the azadiene and on the stereochemistry of the cyclic products was evaluated. It was shown that the electroc
An ab initio investigation of the effects of 2-exo and endo substituents on norbornane
✍ Scribed by Peter Rudolf Seidl; Katia Z. Leal; José Glauco R. Tostes; C.A. Taft; Brian L. Hammond; W.A. Lester Jr.
- Publisher
- Elsevier Science
- Year
- 1988
- Tongue
- English
- Weight
- 292 KB
- Volume
- 147
- Category
- Article
- ISSN
- 0009-2614
No coin nor oath required. For personal study only.
✦ Synopsis
Ab initio calculations using the STO-3G basis set and optimized geometries by MM2 and MNDO are used to investigate the charge distribution of norbornane bicycle-[2.2.1 ]-heptane with 2-exe and endo substituents (methyl, ethyl, hydroxyl). The calculated net atomic charges using geometries obtained by both methods are analyzed.
📜 SIMILAR VOLUMES
Nanosecond time-resolved resonance Raman spectra of the T 1 states and Raman spectra of the S 0 states of 1bromonaphthalene and 1,4-dibromonaphthalene were measured. Ab initio calculations were also performed to determine the optimized geometries and vibrational spectra for the S 0 and T 1 states of
Ab initio calcdations at the MP2/6-31G\*//HF/3-21G\* level have been carried out to study Eels-Alder reactions of 2-substituted-1,3-dienes with s u l h dioxide. The CH ... 0 electrostatic interaction detected in some of the transition structures located could be decisive in the control of the exo/en