2- Chlorophenyl ethyl ketone

Ans. (a) 3-Methylcyclohexanone. (b) Common names are used for ketones where one (or both) substituent(s) attached to the carbonyl carbon is (are) cyclic (aromatic or nonaromatic) 2-chloro-phenyl ethyl ketone or o-chlorophenyl ethyl ketone, (c) 4-Methyl-2-heptanone. (d) 2-Chloro-cyclohexanecarbaldehyde. 

Woo the temperature dependence of pitch for chiral nematic polymers does not seem to follow any particular pattern. It is believed that as temperature is increased, specific interactions, e.g., hydrogen bonding, whether inter- or intramolecular or polymer-solvent interactions are destroyed. The polymer chains become more flexible and the side groups more easily relaxed, thereby changing the physical properties of the chiral nematic structure. Similarly, an increase in concentration leads to a decrease in pitch for most lyotropic cellulosic liquid crystals with the exception of cellulose tricarbanilate (CTC) in ethyl methyl ketone, 2-penta-none, or tiiethylene glycol monoether and the chlorophenyl urethane derivative in diethylene glycol monoether. ... 

The Michael addition, i.e the fusion of an enolate with an a,P-unsaturated aldehyde, ketone, ester, carboxamide, or nitrile, belongs to the most prominent organic reactions/ " The literature abounds with impressive examples as is the manufacture of chrysanthemic acid from two isoprene building blocks, namely, ethyl P,P-dimethylacrylate and 4-chlorophenyl prenyl (3-methyl-2-butenyl) sulfone. ... 

---