Question

Un monoester alifatic saturat cu raportul de masa C:H:O 6:1:4 prezinta un nr de izomeri de tip ester de?

Answer 1

CxH(2x+1)-COOCyH(2y+1)
12(x +y+1) / 6 = 2(x+y+1)/1 = 32/4
x+y+1 = 8    ⇒    x+y = 7  ⇒  (x = 5, y=1); (x= 4,y =2); (x = 3,y=3) ; (x=2,y=4); (x= 1, y =5)
esterii pot fi : 1. CH3-(CH2)₅-COOCH3
2. (CH3)₂-CH- (CH2)₂- COOCH₃      3.  CH3-CH2-CH(CH3)₂-COOCH3
4. CH3-C(CH3)₂-CH2-COOCH3      5. CH3-CH2-C(CH3)₂-COOCH3
6.CH3-CH(CH3) - CH(CH3) -COOCH3
7. CH3-(CH2)₃-COOC2H5   8. CH3-CH(CH3) - CH2-COOC2H5
9.CH3-CH2-CH(CH3) - COOC2H5 .......