Benzaldehyde

Benzaldehyde is also known as benzoin aldehyde, the organic compound benzaldehyde formed after the hydrogen of benzene is replaced by aldehyde group is the simplest, but also the most commonly used aromatic aldehyde in industry. At room temperature it is a colorless liquid with a distinctive almond odor. Benzaldehyde is a compound that is directly connected with the aldehyde group and the phenyl group, and has been called bitter almond oil because it has a flavor similar to bitter almond. Benzaldehyde is widely present in the plant kingdom, especially in the rose family, mainly in the form of glycosides in the stem skin, leaves or seeds of plants, such as amygdalin in bitter almonds, cherries, bay leaves, peach stones. Benzaldehyde is naturally present in bitter almond oil, patchouli oil, hyacinth oil, ylang ylang oil and other essential oils. Chemicalbook The compound is also found in kernels and nuts in the form of glycosides (Amygdalin). Benzaldehyde is chemically similar to fatty aldehydes, but there are differences. Benzaldehyde can not reduce Fehring reagent; In the reduction of benzaldehyde with the reagent used in the reduction of fatty aldehyde, in addition to the main product benzyl alcohol, some tetra-substituted o-diol compounds and homophenyl glycol are produced. In the presence of potassium cyanide, two molecules of benzaldehyde form benzoin by giving and receiving hydrogen atoms. Benzaldehyde can also carry out electrophilic substitution reactions on aromatic nuclei, mainly to produce metasubic substitution products, such as nitrification when the main product is metasitrobenzaldehyde. Nowadays benzaldehyde is mainly prepared from toluene by different ways.

Benzaldehyde is an important raw material in medicine, dyes, fragrances and resin industries, and has a wide range of uses: it can be used as a solvent, plasticizer and low-temperature lubricant, etc. It plays an important role in medicine, dyes, fragrances and resin industries. 1. Spice industry application: mainly used to prepare food flavor, a small amount of used in daily chemical flavor and tobacco flavor, can be used as a special head fragrance, in lilac, lilac, jasmine and other floral formulae used in a trace. 2. Food industry application: GB2760-1996 provisions for the temporary permitted use of edible spices, the main Chemicalbook to prepare almond, cherry, peach and other flavors, can also be used as a sweet water cherry canned deodorant. 3. Agricultural application: It is an intermediate of herbicide wild Yanquat and plant growth regulator antiinverted amine, used in the agricultural field. 4. Chemical raw materials: important chemical raw materials, used for the preparation of laural, lauric acid, phenylacetaldehyde, benzyl benzoate, etc. 5. Laboratory use: Used for the determination of ozone, phenols, alkaloids and methylene and other reagents located next to carboxyl groups. In short, benzaldehyde has important applications in many fields and is a multifunctional compound.

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