OMgBr OH Br (2)CH3CCH3 CH3CCH3 CH3CC2Hs C2Hs CH3 CH3 (3)CH3CHO,CH3CH=CHCHO,CH3CH2CH2CH2OH,CH3CH2CH2CH2 CI CH;CH2CH2CH2MgCI CH;CH2CH2CH2CH2CH-OMgCI CH3(CH2)sOH 0 OH CH、C(OH(CH2 (4)CHCCH3 CHCC=CCH3 CC=C. CH H H 0O.C0·CX0mOs+,am (6CH=CHCHO aoa ○CH,CH,CHO 0 ()CH-○NOH NH OCH3 (s)(CH3)2CCHO (CH3)2CCH OCH (CH)CCH OCHs Br Br MgBr OCH OMgBr (CH)CCH-C(CH)CH-OCH (CH3)CHCHC(CH3)CHO OCH3 OH CH3 CH3 O CH3 (9)CH3-C-C-CH3 CH3-C-C-CH3 Br2/NaOH OH OH CH > 7 Br O (2) CH3CCH3 CH3CCH3 OMgBr C2H5 CH3CC2H5 OH CH3 CH3CC2H5 CH3 (3) CH3CHO , CH3CH=CHCHO , CH3CH2CH2CH2OH , CH3CH2CH2CH2 Cl CH3CH2CH2CH2MgCl CH3CH2CH2CH2CH2CH2OMgCl CH3 (CH2 )5OH O (4 ) CH3CCH3 CH3CC CCH3 OH CH3 C=C CH3 C(OH)(CH3 )2 H H S S (5 ) OH , O , , + NiS CH3 CH3 + CH4 (6 ) CH=CHCHO CH=CHCH O O CH2CH2CHO CH2CH2CH O O O (7 ) CH3 NOH NH CH3 (8) (CH3 )2CCHO Br (CH3 )2CCH OCH3 OCH3 Br (CH3 )2CCH OCH3 B OCH3 Mg r OCH OH 3 (CH3 )2CCH OCH3 OMgBr C(CH3 )2CH (CH3 )2CHCHC(CH3 )2CHO C O OH OH (9) CH3 CH3 CH3 CH3 C CH3 C CH3 CH3 CH3 C Br2 /NaOH