PROBLEM TO BE SOLVED: To provide a compound having a herb-like aroma that is effective as a fragrance and capable of enhancing sweetness by blending with another fragrance, and a fragrance composition including the above compound.SOLUTION: A dimethylcyclohexenylalkenone expressed by formula (I) is provided, and a fragrance composition is provided including the dimethylcyclohexenylalkenone. In the formula, R1 represents a hydrogen atom or a methyl group and R2 represents a methyl group or an ethyl group. A bond shown as a wavy line of the compound (I) represents a cis form or a trans form, or a mixture of cis and trans forms.COPYRIGHT: (C)2014,JPO&INPIT【課題】香料として有用なハーブ様の香気を有し、かつ、他の香料と調合することで甘さを強調することが可能な化合物及びその化合物を含む香料組成物を提供すること。【解決手段】式(I)で示されるジメチルシクロヘキセニルアルケノン及び該ジメチルシクロヘキセニルアルケノンを含む香料組成物。【化1】(式中、R1は水素原子又はメチル基、R2はメチル基又はエチル基を示す。化合物(I)の波線の結合は、シス型もしくはトランス型またはシス型とトランス型の混合物を示す。)【選択図】なし