Carbon and it's compounds
Asked by | 20th Jun, 2008, 11:58: AM
A standard procedure recommended by IUPAC is followed while naming of alkanes alkenes and alkynes.
For example in branced alkanes we follw this procedure:
- Find the longest chain of carbons in the molecule. The number of carbons in the longest chain becomes the parent name (refer to the standard table given in NCERT)
- After finding the parent chain, you number the parent chain starting with the end nearest the first substituent (a substituent is any fragment that juts off the main chain).
- Next, determine the names of all substituents. Substituents are named as if the piece were a separate molecule, except that the suffix of yl is used rather than ane. Thus, a two-carbon substituent would be an ethyl substituent (not an ethane substituent).
- Put the substituents in alphabetical order (ie. ethyl before methyl) in front of the parent name.
- Next, identify the positions of all substituents in the name by placing the carbon number where the substituent attaches to the parent chain in front of it. For example, 2-methylheptane indicates that a methyl substituent is attached to the num
For further clarifications please post the problems individually.
Answered by | 28th Jun, 2008, 11:21: AM
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