Four kinds of alkyl substituted derivatives, 1), 2), 3) and 4), of hydrocinnamaldehyde of following formula were synthesized through a new route and theiraromas have been investigated.where in 1) R
1=CH
3, and R
2=H ; in 2) R
2=n-amyl, R
2=H ; in 3) R
1=CH
3, R
2=secbutyl group ; in 4) R
1=CH
3, R
2=tert-butyl group.Four kinds of product thus obtained were highly pure and their aroma were varied from cinnamon-like or hyacinth-like aroma to jasmine-like aroma when R
2=H and the number of carbon in R
1 was increased. With an increase of carbon numbers in R
2, it gave cinnamon-like aroma to lilly-like aroma, when R
1=CH
3.Thus, many kinds of aroma of flowers ware obtainable by the variation of combination of R
1 and R
2, and these are utilizable as artificial flower oils, perfumesfor toilet goods and soaps.
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