This is off two steps
a) How to give the numbering
b) How to write the name
1.Loggest chain rule:
consider longest continuous chain
2.If main chain contains
a) one substituent then lowest number comes for substitutes
b) chain contains two/more substituents then the total number of
position of substituents
3.If chain contains functional group,double bond,triple
bond,substituent then the numbering is given by following order
functional group>double bond>triple bond>substituent
4.If chain contains tow/more functional groups then given priority
according to the table
1.The name of substituent write before the name of main chain
along with its position and a small hyphen (-) is inserted between the position
and name of substituent
2.If compounds having two/more different substituent then
thouse are arranges in alphabetic order(a,b,c,d,........z)
3.If compound having identical substituents at same position then
the position should be repeated along with their prefix for (2,3,4,.......) by
using (di,tri,tetra,................)
position-number(di,tri,tetra............)+substituent(in
alphabetic)+rootword(no of carbons)+ene/yne/functional group+sufixa
No comments:
Post a Comment