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. +H 过量)-|||-CH2CH 2OCH3-|||-C. +HT 过量)→-|||-0 CH3-|||-d. (C(H)_(3))_(2)CHBr+NaO(C)_(2)(H)_(5)-|||-e. (H)_(3)(C(H)_(2))3CHC(H)_(3)xrightarrow [高温](KMn{O)_(4)}-|||-OH-|||-O-|||-f.-|||-HIO4 CH3COH +CH3 CH2CHO-|||-0-|||-HIO4 CH3CCH 2CH2 CH2CHO-|||-g.-|||-OH-|||-h. +Br2→-|||-CH3-|||-i. CH3(CH 2)2 CHCH2CH3-浓H2SO4-|||-OH