Question

the IUPAC name of CH3-CH(CH3)-CH2-CH=CH2
fast please​

Answer 1

ANSWER:

• The IUPAC name of the given compound is 4 - Methyl - Pent-1-ene.

GIVEN:

• CH₃ – CH(CH₃) – CH₂ – CH = CH₂

EXPLANATION:

STRUCTURE:

$\setlength{\unitlength}{1 cm}\begin{picture}(0,0)\put(0,0){ \bold{CH_3(5) - CH(4) - CH_2(3) - CH(2) = CH_2 (1)} }\put(1.8,-0.5){ \boldsymbol {|} }\put(1.8,-1){ \bold {CH_3} }\end{picture}$

• Numbering of carbons given from double bonded carbon atom.

• Double bonded carbon gets the priority.

• Numbering of carbon are given in parantheses for better understanding.[ Eg. (4) ]

• In fourth carbon a methyl (CH₃) group is bonded which is not included in the chain.

• The long chain consists of 5 carbons.

• 5 carbons and a double bond in 1st carbon indicate Pent-1-ene ( Pent - five, ene - double bond or alkenes)

• 1 indicate the position of double bond.

• Also methyl group in fourth carbon is added to give 4 - Methyl - Pent-1-ene.

• Hence IUPAC name of CH₃ – CH(CH₃) – CH₂ – CH = CH₂ is 4 - Methyl - Pent-1-ene.

Answer 2

Refer to the above attachment