Identify the chirality centers, if any, in(a) 2-Cyclopentenol and 3-cyclopentenol(b) 1,1,2...

Identify the chirality centers, if any, in

(a) 2-Cyclopentenol and 3-cyclopentenol

(b) 1,1,2-Trimethylcyclobutane and 1,1,3-trimethylcyclobutane

Sample Solution (a) The hydroxyl bearing carbon in 2 cyclopentenol is a chirality center. There is no chirality center in 3-cyclopentenol, because the sequence of atoms 1 → 2 → 3 → 4 → 5 is equivalent regardless of whether one proceeds clockwise or counterclockwise.