Novel odoriferous compositions which contain as an odoriferous material cain cyclopentanone derivatives having the formula ##SPC1## In which R represents a hydrocarbon group of 3 to 7 carbon atoms, X represents a cyano, formyl, hydroxymethyl, lower alkoxymethyl, lower alkanoyloxymethyl or lower alkylcarbonyl group and Y represents an oxo or ketal group, With the proviso that R does not represent an n-pentyl group when, simultaneously, X represents a methylcarbonyl group and Y represents an oxo group.
含有以下
化学式的
环戊酮衍
生物作为气味物质的新型气味组合物:##
SPC1##
其中,R表示3至7个碳原子的碳氢基团,X表示
氰基、甲酰基、羟甲基、低碳基氧甲基、低碳基酰氧甲基或低碳基羰基基团,Y表示羰基或
缩醛基团,但当X表示甲基羰基基团,Y表示羰基基团时,R不表示正戊基团。