Nitration of chlorobenzene - A warning

1-(3-Bromopropoxy)-4-chlorobenzene

In the mol-ecule of the title compound, C(8)H(8)BrClO, the Cl atom lies slightly out of the aromatic ring plane [displacement = 0.072 (3) Å]. In the crystal structure, a π-π contact between the phenyl rings [centroid-centroid distance = 3.699 (3) Å] may stabilize the structure. There also exists a C-H⋯π contact between the methyl-ene group and the chloro-phenyl ring.

Topical immunotherapy with dinitro-chlorobenzene: safety concerns.

Early warning scores: a health warning.

Early warning scores are frequently used in UK adult emergency departments (EDs) and are gaining traction in paediatric emergency care. Like many innovations with inherent face validity, they have great appeal to clinicians, managers and commissioners. However, it is important to ensure unintended consequences and balancing measures are mitigated. We review the background to their development a...

A Reinvestigation of Nitration of Phenols with Metal Nitrates under Non-Aqueous and Aprotic Conditions

Nitration of phenol and various 4-substituted phenols with Cu(NO3)2.3H2O, Cu(NO3)2.3H2O/SiO2, 9H2O and Cr(NO3)2. 9H2O in different anhydrous organic solvents are investigated. High selectivity ratio of para vs ortho isomers has been observed. Mono- and dinitro compounds f...

Effect of black surfaces to increase the average surface temperature of the earth: A global warning!

Gradual increase of the Earth's surface temperature can cause many significant changes on the climate of our planet. This problem is progressively increasing. One of the main reasons for this phenomenon is the absorption of the Sun's energy and lack of proper reflection of emissions due to man-made activities, one of which is the increase in black surfaces. In this descriptive and cross-sectio...