8.9 写出下列反应的主要产物或反应物:-|||-a. (C(H)_(3))_(2)CHC(H)_(2)C(H)_(2)OH+HBr-|||-OCH3-|||-b. +HI 过量)-|||-CH2CH 2OCH3-|||-C. +H 过量)-|||-() CH3-|||-d. (C(H)_(3))_(2)CHBr+NaO(C)_(2)(H)_(5)-|||-e.CH3(CH2)3 CHCH3- OH^--|||-OH-|||-f.-|||-HIO4 CH3COH+CH3CH2CHO-|||-0-|||-HIO4 CH3CCH2CH 2CH2 CHO-|||-g.-|||-()OH-|||-h. arrow +B(F)_(2)arrow -|||-CH4-|||-i.CH3(CH2)2 CHCH2CH3-浓H2SO4-|||-OH (分子内脱水)