[jhb1422]

(CH₃)₂CHCOOCH₃

My question is indicated by the colors.

According to the method for peak splitting, the CH₃'s hydrogens are split into two peaks. (adjacent n+1).

However, how many peaks would the CH be split into? My original assumption is 8 (3H+1 = 4, 4x2 = 8 ). However my solutions manual says the answer is 6.... why is 6 the correct answer?

[orgopete]

The rule should be interpreted that adjacent to the CH are 6-hydrogens. The adjacency rule should then be 6 + 1 = 7 peaks.