CH3CH=CHCH2CH=CHCF3+Br2(1mol)主要产物为:
A. CH3CHBrCHBrCH2CH=CHCF3
B. CH3CH=CHCH2CHBrCHBrCF3
CH3CHBrCH=CHCH2CHBrCF3
D. CH3CHBrCH=CHCHBrCH2CF3
下列哪个化合物可以起卤仿反应?
A. CH3CH2CH2OH
B. C6H5CH2CH2OH
CH3COCH2CH2COCH3
D. HCHO
某烯烃经臭氧化和还原水解后只得CH3COCH3,该烯烃为:
A. (CH3)2C=CHCH3
B. CH3CH=CH2
C. (CH3)2C=C(CH3)2
D. (CH3)2C=CH2
下列环烷烃中加氢开环最容易的是:
A. 环丙烷
B. 环丁烷
C. 环戊烷
D. 环己烷