P-65.5.1 Acyl halides from suffix acids P-65.5.1.1 Acid halides in which hydroxy groups of all acid groups expressed as the suffix denoting the principal characteristic group (carboxylic, sulfonic, sulfinic, selenonic, etc. acids) have been replaced by halogen atoms ($\ce{F}$, $\ce{Cl}$, $\ce{Br}$, and $\ce{I}$) are named by citing the name of the acyl group (see P-65.1.7) followed by the name(s) of the specific class(es) as a separate word(s), in alphabetical order, each preceded by a multiplicative prefix, as needed.
The names formyl, acetyl, benzoyl, oxalyl, and oxamoyl are retained as preferred
prefixes.
So yes, the name benzoyl chloride is the preferred IUPAC name.
The suggested name "benzene carbonyl chloride" is not in accordance with IUPAC nomenclature. The similar name benzenecarbonyl chloride is a correct systematic name. However, it is not the preferred IUPAC name since "benzoyl" is the preferred prefix.
Also note that the retained name benzoic acid is the preferred IUPAC name, although the systematic name is benzenecarboxylic acid.
P-65.5.1 Acyl halides from suffix acids P-65.5.1.1 Acid halides in which hydroxy groups of all acid groups expressed as the suffix denoting the principal characteristic group (carboxylic, sulfonic, sulfinic, selenonic, etc. acids) have been replaced by halogen atoms ($\ce{F}$, $\ce{Cl}$, $\ce{Br}$, and $\ce{I}$) are named by citing the name of the acyl group (see P-65.1.7) followed by the name(s) of the specific class(es) as a separate word(s), in alphabetical order, each preceded by a multiplicative prefix, as needed. The names formyl, acetyl, benzoyl, oxalyl, and oxamoyl are retained as preferredprefixes.
So yes, the name benzoyl chloride is the preferred IUPAC name.
The suggested name "benzene carbonyl chloride" is not in accordance with IUPAC nomenclature. The similar name benzenecarbonyl chloride is a correct systematic name. However, it is not the preferred IUPAC name since "benzoyl" is the preferred prefix.
Also note that the retained name benzoic acid is the preferred IUPAC name, although the systematic name is benzenecarboxylic acid.
The relevant rule for the numbering in the current version of Nomenclature of Organic Chemistry – IUPAC Recommendations and Preferred Names 2013 (Blue Book) reads as follows.
So yes, the name benzoyl chloride is the preferred IUPAC name.
The suggested name "benzene carbonyl chloride" is not in accordance with IUPAC nomenclature. The similar name benzenecarbonyl chloride is a correct systematic name. However, it is not the preferred IUPAC name since "benzoyl" is the preferred prefix.
Also note that the retained name benzoic acid is the preferred IUPAC name, although the systematic name is benzenecarboxylic acid.
The relevant rule for the numbering in the current version of Nomenclature of Organic Chemistry – IUPAC Recommendations and Preferred Names 2013 (Blue Book) reads as follows.
So yes, the name benzoyl chloride is the preferred IUPAC name.
The suggested name "benzene carbonyl chloride" is not in accordance with IUPAC nomenclature. The similar name benzenecarbonyl chloride is a correct systematic name. However, it is not the preferred IUPAC name since "benzoyl" is the preferred prefix.
Also note that the retained name benzoic acid is the preferred IUPAC name, although the systematic name is benzenecarboxylic acid.
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