𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Unexpected effect of an hydroxyl group on π-facial selectivity in the nucleophilic addition to bicyclo[2.2.2]octan-2-ones

✍ Scribed by Jean-François Devaux; Pierre Fraisse; Issam Hanna; Jean-Yves Lallemand


Publisher
Elsevier Science
Year
1995
Tongue
French
Weight
250 KB
Volume
36
Category
Article
ISSN
0040-4039

No coin nor oath required. For personal study only.


📜 SIMILAR VOLUMES


Bicyclo[2.1.1]hexan-2-one as a new probe
✍ Veejendra K. Yadav; K.Ganesh Babu; R. Balamurugan 📂 Article 📅 2003 🏛 Elsevier Science 🌐 French ⚖ 111 KB

The cation complexation model performs better than the hydride model and is at par with the transition state model at the HF/6-31G\* and B3LYP/6-31G\* levels. Electrostatic effects that rely on the residual charges on C5 and C6 of the title substrate and that are believed to contribute to the overal

The bicyclo[2.1.1]hexan-2-one system: a
✍ Goverdhan Mehta; S.Robindro Singh; Vanessa Gagliardini; U.Deva Priyakumar; G.Nar 📂 Article 📅 2001 🏛 Elsevier Science 🌐 French ⚖ 79 KB

The remotely substituted 5-exo-bicyclo[2.1.1]hexan-2-one system is introduced as a new probe to study long range electronic effects on p-face selectivity during hydride reduction and a systematic computational study demonstrates good predictability at the semi-empirical level.

On the origin of π-facial diastereoselec
✍ G Frenking; K.F Köhler; M.T Reetz 📂 Article 📅 1991 🏛 Elsevier Science 🌐 French ⚖ 773 KB

Summarv : The transition state structures for addition of LiH to 1, 2, and 3 are computed and analyzed at MP2/6-3lG(d)//HF/6\_3lG(d). Three factors are found to be important for the relative energies of the transition state structures: (i) the conformational energy of the aldehyde; (ii) the interac

On the origin of π-facial diastereoselec
✍ G Frenking; K.F Köhler; M.T Reetz 📂 Article 📅 1991 🏛 Elsevier Science 🌐 French ⚖ 757 KB

## SummarV : The conformational profiles for rotation around the C-C(=O) bond a and the energy minimum conformations are calculated for propionaldehyde 1, chloroacetaldehyde 2, MP2/6-3lG(d)//HF/6\_3lG(d). and 2-chloropropionaldehyde 3 at a function of a for 1, 2, The energy level of the LUMO is ca

π-Facial selectivities in nucleophilic a
✍ Goverdhan Mehta; Vanessa Gagliardini; U.Deva Priyakumar; G.Narahari Sastry 📂 Article 📅 2002 🏛 Elsevier Science 🌐 French ⚖ 66 KB

6 ]decan-10-ones and endo-tricyclo [5.2.1.0 2,6 ]dec-8-en-10-ones with hetero atom modifications at the distal C-4 position have been subjected to hydride reduction. p-Face selectivities in these systems are largely governed by the same electronic factors that were earlier identified in the case of