Do the C-H Bonds Contribute to the Stabilization Energy of Benzene?

The stabilization energy of benzene (SE) is proposed to be · calculated from the increments of heats of formation in the homologous series of conjugated polyenes. In this way 19.7 and 23.0 kcal/mol* are derived for $E, when benzene is compared to trans and cis type polyenes, respectively. A comparison of the estimated C-C bond energy of benzene to that of olefins leads to the conclusion that C-C bonds are responsible for only about 2/3 of SE. It is suggested that the rest of SE is connected with the difference in strength of the aromatic and olefinic C-H bonds

Do the C-H Bonds Contribute to the Stabilization Energy of Benzene?

The stabilization energy of benzene (SE) is proposed to be · calculated from the increments of heats of formation in the homologous series of conjugated polyenes. In this way 19.7 and 23.0 kcal/mol* are derived for $E, when benzene is compared to trans and cis type polyenes, respectively. A comparison of the estimated C-C bond energy of benzene to that of olefins leads to the conclusion that C-C bonds are responsible for only about 2/3 of SE. It is suggested that the rest of SE is connected with the difference in strength of the aromatic and olefinic C-H bonds

A Kinetic Contribution to the Knowledge of Carbon-rings

A mechanism involving a cyclic intermediate has been suggested by Welsh and Fodor independently. To obtain a deeper insight acyl shifts with (1) 2-acylamidocyclopentanol-cis (2) 2-benzamidocyclohexanol-cis and (3) trans have been -investigated kinetically with hydrochloric acid in dry dioxan

A Kinetic Contribution to the Knowledge of Carbon-rings

A mechanism involving a cyclic intermediate has been suggested by Welsh and Fodor independently. To obtain a deeper insight acyl shifts with (1) 2-acylamidocyclopentanol-cis (2) 2-benzamidocyclohexanol-cis and (3) trans have been -investigated kinetically with hydrochloric acid in dry dioxan

Quantitative iTRAQ-Based Proteomic Identification of Candidate Biomarkers for Diabetic Nephropathy in Plasma of Type 1 Diabetic Patients

# The Author(s) 2010. This article is published with open access at Springerlink.com Introduction As part of a clinical proteomics programme focused on diabetes and its complications, it was our goal to investigate the proteome of plasma in order to find improved candidate biomarkers to predict diabetic nephropathy. Methods Proteins derived from plasma from a crosssectiona