Only 18-44a and 18-45b

PROBLEM Predict the products of the following ether cleavage reactions: 18-44 (a) CH2 CH3 HI ? H 2C (b) -CH3 CF3CO2H ? H3C CH3 (c) H2C=CH-0-CH2CH3 HI H20 ? (d) CH3 CH3CCH2-0-CH2CH3 HI H20 CH3 PROBLEM How would you carry out the following transformations? More than one step may be required. 18-45 (a) OCH2CH3 ( b ) H Br OCH3 ? H3C H3 C H I. (c) HaC CH3 H3C CH3 OH ? .H Hac H3C H--- OH (d) CH3 CH2 CH2 CH2C =CH CH3 CH2 CH2 CH2 CH2 CH2OCH3 (e) OCH3 CH3CH2CH2CH2C =CH ? CH3CH2 CH2CH2CHCH3