As we saw in chapter 10, the positions adjacent to C=C, the allylic position, often show enhanced reactivity compared to simple alkanes due to the proximity of the adjacent p system. Similarly, the positions adjacent to a benzene ring, known as the benzylic position also show enhanced reactivity compared to simple alkanes. Students often confuse the term benzyl with phenyl, for example compare the location of the bromine atoms in Bromobenzene and benzyl bromide: Highlight benzylic carbon atom.
A probable cause of numbness in the upper, outer thigh is meralgia paresthetica, a condition that occurs when the nerve that provides sensation to the thighâs surface is compressed, according to Mayo Clinic. It often occurs on one side of the body and worsens upon walking or standing. Continue Reading.
Meralgia paresthetica or meralgia paraesthetica, is numbness or pain in the outer thigh not caused by injury to the thigh, but by injury to a nerve that extends from the spinal column to the thigh. This chronic neurological disorder involves a single nerveâthe lateral cutaneous nerve of thigh, which is also called the lateral femoral cutaneous nerve. The term meralgia paraesthetica combines four Greek roots to mean thigh pain with anomalous perception. The disorder has also been ...