2,4-Undecadienal(CAS#30361-29-6)

Introduction

trans,trans-2,4-Undecadienal is an organic compound. The following is an introduction to its properties, uses, preparation, and safety information:Properties:trans,trans-2,4-Undecadienal is a colorless to pale yellow liquid with a pungent, irritating odor. It can dissolve in many organic solvents, such as ethanol, ether, and petroleum ether. It is an unstable compound and can be easily oxidized in air.Uses:trans,trans-2,4-Undecadienal is mainly used in the synthesis of fragrances and flavors, often as a flavoring agent. It can be used to create various fruity, minty, and herbal scents. It is also used in the production of lemon, orange, and other fruit aromas.Preparation:trans,trans-2,4-Undecadienal can be prepared by the reaction of isobutyl acetate with n-butanol. Isobutyl acetate reacts with hydrogen bromide to form 2-bromo-2-butanone, which is then partially hydrolyzed with a copper-iron alloy to produce homologous isomers of acetic acid. Through acid catalysis, the dehydration of these acetic acid homologs yields trans,trans-2,4-undecadienal.Safety Information:trans,trans-2,4-Undecadienal is a volatile liquid and can be irritating to the skin and eyes. Protective gloves and safety goggles should be worn when handling it. Inhalation and ingestion should be avoided, and prolonged exposure to its odor should be prevented.