Surprisingly, the aryl-aryl rotation barrier of biphenyl derivatives ortho-substituted by the “small” HC=O and HC=CH2 groups (10.0 and 8.4 kcal mol-1, respectively) were found greater than those observed in biphenyls ortho-substituted by the “large” t-BuC=O and t-BuC=CH2 groups (6.7 and 6.9 kcal mol-1, respectively).
Unexpected Stereodynamic Consequences of the Restricted Rotations in ortho-Acyl- and ortho-Vinyl Biphenyls / L. Lunazzi; A. Mazzanti; M. Minzoni. - In: JOURNAL OF ORGANIC CHEMISTRY. - ISSN 0022-3263. - STAMPA. - 71:(2006), pp. 9297-9301. [10.1021/jo0613131]
Unexpected Stereodynamic Consequences of the Restricted Rotations in ortho-Acyl- and ortho-Vinyl Biphenyls.
LUNAZZI, LODOVICO;MAZZANTI, ANDREA;MINZONI, MIRKO
2006
Abstract
Surprisingly, the aryl-aryl rotation barrier of biphenyl derivatives ortho-substituted by the “small” HC=O and HC=CH2 groups (10.0 and 8.4 kcal mol-1, respectively) were found greater than those observed in biphenyls ortho-substituted by the “large” t-BuC=O and t-BuC=CH2 groups (6.7 and 6.9 kcal mol-1, respectively).File in questo prodotto:
Eventuali allegati, non sono esposti
I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
