发明授权
US3970701A Lower alkenals 失效
低级烯

Lower alkenals
摘要:
Novel lower 2-alkylidene-2-alkenals having the formula: ##SPC1##Wherein one of R.sub.1 and R.sub.2 is hydrogen and the other is methyl, and one of R.sub.3 and R.sub.4 is hydrogen and the other is an alkyl group having two or four carbon atoms, such alkenals being useful in altering organoleptic properties of consumable materials.
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