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Conformations of highly hindered aryl ethers: II. Dipole moments of 2,4-dinitrophenyl phenyl ethers

✍ Scribed by D.M.B. McEachern; P.A.F. Lehmann


Publisher
Elsevier Science
Year
1971
Tongue
English
Weight
692 KB
Volume
7
Category
Article
ISSN
0022-2860

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📜 SIMILAR VOLUMES


Conformations of highly hindered aryl et
✍ Pedro A. Lehmann F. 📂 Article 📅 1970 🏛 John Wiley and Sons 🌐 English ⚖ 943 KB

## Abstract PMR studies of a series of 2,4‐ and 2,6‐ dinitrophenyl‐ and 2,4‐dinitronaphthyl‐ aryl ethers strongly indicate the existence of preferred conformations. Extensive conjugation of the ether linkage with the dinitro ring, resulting in their coplanarity, is an important stereochemical influ

Conformations of highly hindered aryl et
✍ Pedro A. Lehmann F. 📂 Article 📅 1973 🏛 John Wiley and Sons 🌐 English ⚖ 440 KB

## Abstract The PMR spectrum of 3,5‐dibromo‐4‐methoxybenzyl 2′,6′‐dibromo‐4′‐methylphenyl ether shows two aromatic proton equation image signals at δ = 7·33 and 7·71. Comparison with related benzyl ethers and anisoles led to assignment of the upfield signal to the phenyl‐ring protons (H3′ and H5′