𝔖 Bobbio Scriptorium
✦   LIBER   ✦

On the non-equivalence of -OCH2- protons in simple cyclohexanecarboxylic ethyl esters

✍ Scribed by S.N. Balasubrahmanyam; M. Sivarajan


Publisher
Elsevier Science
Year
1971
Tongue
French
Weight
115 KB
Volume
12
Category
Article
ISSN
0040-4039

No coin nor oath required. For personal study only.


📜 SIMILAR VOLUMES


Magnetic non-equivalence in the methylen
✍ G.E. Hall; D. Hughes; D. Rae; A.P. Rhodes 📂 Article 📅 1967 🏛 Elsevier Science 🌐 French ⚖ 241 KB

At room temperature in deuterochloroform solution, ethyl 2-(2,&dinitrophenyl) acetoacetate exists in the enol form, as shown\* by a one proton singlet at 13.18 6 in the proton magnetic resonance (p.m.r.) -1 spectrum (l), and the absence of any strong 3 C-0 band above l'i'O0 cm in the infra-red. The

On the origin of the magnetic non-equiva
✍ Adrian O. Fulea; Peter J. Krueger 📂 Article 📅 1975 🏛 Elsevier Science 🌐 French ⚖ 309 KB

The problem of the magnetic non-equivalence of geminal groups was dealt with extensively in the last decade.2a-g However, unambiguous information about the exact contribution of the con. formatfonal and intrinsic asymmetry factors to ARAB is virtually non-existent.3

Conformationally dependent influence of
✍ M. A. Iorio; A. F. Casy 📂 Article 📅 1975 🏛 John Wiley and Sons 🌐 English ⚖ 388 KB

## Abstract Examples are given of the conformationally dependent influence of 3‐substituents (methyl, __n__‐propyl, allyl, aryl, hydroxy and acyloxy) on the magnetic non‐equivalence of the benzylic methylene protons (N__CH__~2~Ph) of __N__‐benzylpiperidine as observable by ^1^H NMR. The results, to

Anisochrony of the O-methylene protons o
✍ S. N. Balasubrahmanyam; S. Narasimha Bharati 📂 Article 📅 1981 🏛 John Wiley and Sons 🌐 English ⚖ 576 KB

## Abstract The methylene protons of the ethyl ester function at C‐2 in triethyl __meso__, __cis__‐1,3‐dimethylcyclohexane‐1,2,3‐tricarboxylate (A) are anisochronous, despite the apparent symmetry of structure A. The necessary diastereotopy is thought to be engendered by the central ester being sta