Novel eco-friendly solution for the regioselective acetylation of per-O-TMS carbohydrates.

Regioselective acetylation of per-O-TMS carbohydrates was achieved preferentially at the 6 position or 1,6-position under mild conditions involving the eco-friendly solvent acetonitrile, at room temperature, in ambient atmosphere and in a shorter time. Good or moderate yields were obtained via 4-dimethylaminopyridine, without auxiliary equipment. A single α-O-Acetyl acetylation anomer was exclusively defined for the involved substrates.

Variability of metabolic risk factors associated with prehypertension in males and females: a cross-sectional study in China.

Introduction: Prehypertension is highly prevalent. However, very few studies have evaluated the association of various metabolic risk factors in those with prehypertension and, more importantly, possible differences based on gender.

Material And Methods: Data of clinical characteristics were collected from 3891 subjects.