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Switching Reaction Mechanism by Monolayer Compression: An Ester Hydrolysis

✍ Scribed by Prof. Dr. Jamil Ahmad; Dr. Kenneth Brian Astin

Publisher: John Wiley and Sons
Year: 1990
Tongue: English
Weight: 339 KB
Volume: 29
Category: Article
ISSN: 0044-8249
DOI: 10.1002/anie.199003061

No coin nor oath required. For personal study only.

✦ Synopsis

and the Wiberg bond order is 0.67. The natural charges are +OX7 on B and -1 .OO on N (vide supra, note signs).

We conclude that the diorgano(pyrazoly1)boranes have similar geometries in solution and in the solid phase. Although symmetrical structures like 3 are involved in the degenerate rearrangement, they are not present in significant concentration in solution. Both the electronic structure and the "B-NMR chemical shift of 3 are normal.['21 That is, the pyrazole ring in the hypothetical 3 retains its 6~ aromatic character and the B-N bonding is intermediate between single B-N and dative N + B arrangements.

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