Systematic Names of Thiols Write the IUPAC name for each thiol. Strategy To derive the IUPAC name of a thiol, select as the parent alkane the longest carbon chain that contains the -SH group. Show that the compound is a thiol by adding the suffix -thiol to the name of the parent alkane. Number the

Question

Systematic Names of Thiols

Write the IUPAC name for each thiol.

Strategy

To derive the IUPAC name of a thiol, select as the parent alkane the longest carbon chain that contains the [latex]- SH[/latex] group. Show that the compound is a thiol by adding the suffix -thiol to the name of the parent alkane. Number the parent chain in the direction that gives the [latex]- SH[/latex] group the lower number.

Accepted Answer

(a) The parent alkane is pentane. Show the presence of the $- SH$ group by adding “thiol” to the name of the parent alkane. The IUPAC name of this thiol is 1-pentanethiol. Its common name is pentyl mercaptan.

(b) The parent alkane is butane. The IUPAC name of this thiol is 2-butanethiol. Its common name is sec-butyl mercaptan.

Question 14.7: Systematic Names of Thiols Write the IUPAC name for each thi...

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