4.用丁醇为原料合成下列化合物：（1）辛烷 （2）丁烷 （3）戊烷 （4）己烷

1CH3CH2CH2CH2OH+HCL=CH3CH2CH2CH2CL+H2O
CH3CH2CH2CH2CL+MG=CH3CH2CH2CH2MGCL
CH3CH2CH2CH2OH+O2=CH3CH2CH2CHO
CH3CH2CH2CHO+CH3CH2CH2CH2MGCL=CH3CH2CH2CH(OH)CH2CH2CH2CH3
CH3CH2CH2CH(OH)CH2CH2CH2CH3=CH3CH2CCH=CHCH2CH2CH3+H2O
CH3CH2CH2CH=CHCH2CH2CH3+H2=CH3CH2CH2CH2CH2CH2CH2CH3
2CH3CH2CH2CH2OH=CH3CH2CH=CH2+H2O
CH3CH2CH=CH2+H2=CH3CH2CH2CH3
3CH3CH2CH2CH2OH+NACN=CH3CH2CH2CH2CN+NAOH
CH3CH2CH2CH2CN+2H2O=CH3CH2CH2CH2COOH+NH3
CH3CH2CH2CH2COOH+H2=CH3CH2CH2CH2CH3+O2
4 CH3CH2CH2CH2OH=CH3CH2CH=CH2+H2O
CH3CH2CH=CH2+O2=CH3CH2CHO+HCHO
CH3CH2CHO+H2=CH3CH2CH2OH
CH3CH2CH2OH+HCL=CH3CH2CH2CL+H2O
CH3CH2CH2CL+MG=CH3CH2CH2MGCL
CH3CH2CHO+CH3CH2CH2MGCL=CH3CH2CH(OH)CH2CH2CH3+MGCL2
CH3CH2CH(OH)CH2CH2CH3=CH3CH2CH=CHCH2CH3+H2O
CH3CH2CH=CHCH2CH3+H2=CH3CH2CH2CH2CH2CH3