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CH⋅⋅⋅O Hydrogen Bonding Influences π-Facial Stereoselective Epoxidations

✍ Scribed by Ilyas Washington; K. N. Houk


Publisher
John Wiley and Sons
Year
2001
Tongue
English
Weight
134 KB
Volume
113
Category
Article
ISSN
0044-8249

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CH⋅⋅⋅O Hydrogen Bonding Influences π-Fac
✍ Ilyas Washington; K. N. Houk 📂 Article 📅 2001 🏛 John Wiley and Sons 🌐 English ⚖ 130 KB

Epoxidations of a-cyclogeranyl systems, such as 1 [Eq. ( )], occur syn to the alkyl group at C3, contrary to expectation based upon steric effects. To determine the origin and scope of this effect, transition structures have been located for oxygen transfer from peracetic acid to several substitute

Ab initio study of the effect of CH ···
✍ D. Suárez; R. López; J. González; T. L. Sordo; J. A. Sordo 📂 Article 📅 1996 🏛 John Wiley and Sons 🌐 English ⚖ 402 KB 👁 3 views

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