OH NaBH4 -(CH3)2C(CH2) OH 6.以乙烯和丙酮为原料合成CH=CHCH2OC(CH3)2CH2CH2CH3 CH3CH= CCL- BrCH2CH= CH CHCH=ch, +HBr- H202, Ch,Ch Ch B Et20 OH CH3 CH, CH,MgBr 1 CH, CoCH,, Ch2-C-CH, CH,CH 2.H3O CH CH3-C-CH2, CH3 BrCHCH CH2=CHCH,OC(CH3)2CH,CHCH CH3 OH OH 7.由 BrCH2ch2CHO合成CH2- CHCHO BCH2CH2CHO-无水HCT eToH OCHs BrCH2CH2CH 答 CH2=CHCH(OC2H5)2 OH CH, CHCH(OC2H5)2 KMno OHOH OH OH CH,-CHCHO O 8.以BrCH2CH2COCH3为原料合成CH3CCH2CH2CCH346 OH (CH3 )2C(CH2 )4OH NaBH4 6．以乙烯和丙酮为原料合成 CH2 CHCH2OC(CH3 )2CH2CH2CH3 答： CH3CH CH2 BrCH2CH CH2 NBS CCl4 CH3CH CH2 Mg Et2O + HBr H2O2 CH3CH2CH2Br 2. H3O + CH 1. CH3COCH3 3CH2CH2MgBr CH3 CH3 C OH CH2CH2CH3 Na CH2 BrCH2CH CH2 CHCH2OC(CH3 )2CH2CH2CH3 CH3 CH3 C ONa CH2CH2CH3 7．由 BrCH2CH2CHO 合成 CH2 CHCHO OH OH 答： BrCH2CH2CHO OC2H5 2EtOH OC2H5 无水HCl BrCH2CH2CH OH - CH2CHCH(OC2H5 )2 CH2 OH CHCH(OC2H5 )2 - KMnO4 OH OH CH2 CHCHO H3O + OH OH 8．以 BrCH2CH2COCH3为原料合成 O O CH3CCH2CH2CCH3